Jury finds Jennifer Crumbley guilty of involuntary manslaughter on all counts

Prosecutor Karen McDonald during the the jury trial of Jennifer Crumbley in the courtroom of Judge Cheryl Matthews at Oakland County Circuit Court in Pontiac, Michigan on February 6, 2024.

Judge Cheryl Matthews during the trial that found Jennifer Crumbley guilty in four charges of involuntary manslaughter at Oakland County Circuit Court in Pontiac, Michigan on February 6, 2024. Daniel Mears, The Detroit News

Craig Shilling, whose son Justin was killed in the Oxford High School shooting looks on after a jury found Jennifer Crumbley guilty in four charges of involuntary manslaughter at Oakland County Circuit Court in Pontiac, Michigan on February 6, 2024. Daniel Mears, The Detroit News

Jennifer Crumbley arrives to hear the juries verdicts on involuntary manslaughter charges involved in her sons shooting spree on the campus of Oxford High School, in the courtroom of Judge Cheryl Matthews at Oakland County Circuit Court in Pontiac, Michigan on February 6, 2024. Daniel Mears, The Detroit News

Jennifer Crumbley before the juries verdicts on involuntary manslaughter charges involved in her sons shooting spree on the campus of Oxford High School, in the courtroom of Judge Cheryl Matthews at Oakland County Circuit Court in Pontiac, Michigan on February 6, 2024. Daniel Mears, The Detroit News

Defendant Jennifer Crumbley, right, and her attorney Shannon Smith react to the unanimous verdict of guilty of involuntary manslaughter on all counts at the conclusion of her trial in the courtroom of Judge Cheryl Matthews at Oakland County Circuit Court in Pontiac, Michigan on February 6, 2024.

Krystyna Baldwin, stepmother of Madisyn Baldwin, gets emotional after a jury found Jennifer Crumbley guilty of four charges of involuntary manslaughter at Oakland County Circuit Court in Pontiac, Michigan, on Feb. 6, 2024.

Jennifer Crumbley, with attorney Shannon Smith, after the announcement of guilty verdicts on involuntary manslaughter charges involved in her sons shooting spree on the campus of Oxford High School, in the courtroom of Judge Cheryl Matthews at Oakland County Circuit Court in Pontiac, Michigan on February 6, 2024. Daniel Mears, The Detroit News

Craig Shilling, whose son Justin was killed in the Oxford High School shooting, hugs Oakland County Prosecutor Karen McDonald after a jury found Jennifer Crumbley guilty in four charges of involuntary manslaughter at Oakland County Circuit Court in Pontiac, Michigan on February 6, 2024. Daniel Mears, The Detroit News

Jennifer Crumbley leaves the court after a jury found Crumbley guilty in four charges of involuntary manslaughter, involved in her sons shooting spree on the campus of Oxford High School, in the courtroom of Judge Cheryl Matthews at Oakland County Circuit Court in Pontiac, Michigan on February 6, 2024. Daniel Mears, The Detroit News

Defendant Jennifer Crumbley leaves the courtroom after deliberations on a question from the jury during her trial at Oakland County Courthouse. February 5, 2024, in Pontiac, MI. (Clarence Tabb Jr./The Detroit News)

Defense attorney Shannon Smith deliberated a question from the jury during defendant Jennifer Crumbley’s trial at Oakland County Courthouse. Oakland County Courthouse. February 5, 2024, in Pontiac, MI. (Clarence Tabb Jr./The Detroit News)

Prosecutor Karen McDonald and her team huddle before deliberations on a question from the jury during the trial of Defendant Jennifer Crumbley. Oakland County Courthouse. February 5, 2024, in Pontiac, MI. (Clarence Tabb Jr./The Detroit News)

Judge Cheryl Matthews listens to Assistant Prosecutor Marc Keast’s arguments on a question from the jury during defendant Jennifer Crumbley’s trial at Oakland County Courthouse. February 5, 2024, in Pontiac, MI. (Clarence Tabb Jr./The Detroit News)

Jennifer Crumbley, 43, the mother of accused Oxford High School gunman Ethan Crumbley, stares straight ahead while on the stand in the courtroom of Oakland County Court in Pontiac, Michigan during her trial on four counts of involuntary manslaughter on February 2, 2024. Ethan Crumbley, 17, her son, is serving a life sentence for the November 30, 2021 shooting at Oxford High School which left four students dead and six students and a teacher wounded.

Oakland County Circuit Judge Cheryl Matthews swears in Jennifer Crumbley, 43, the mother of accused Oxford High School gunman Ethan Crumbley, on the stand in the courtroom of Oakland County Court in Pontiac, Michigan during her trial on four counts of involuntary manslaughter on February 2, 2024. Ethan Crumbley, 17, her son, is serving a life sentence for the November 30, 2021 shooting at Oxford High School which left four students dead and six students and a teacher wounded.

Oakland County Prosecutor Karen D. McDonald gives her closing statement in Jennifer Crumbley's involuntary manslaughter trial, Friday, Feb. 2, 2024, in Pontiac, Mich. Crumbley, the mother of the Michigan school shooter took the stand Friday in her trial for involuntary manslaughter after the jury heard the teenager blamed his parents, including his father, James Crumbley, for not getting him help before the 2021 attack that killed four students. (AP Photo/Carlos Osorio, Pool)

Jennifer Crumbley, 43, the mother of accused Oxford High School gunman Ethan Crumbley listens on the stand in the courtroom of Oakland County Court in Pontiac, Michigan during her trial on four counts of involuntary manslaughter on February 2, 2024. Ethan Crumbley, 17, her son, is serving a life sentence for the November 30, 2021 shooting at Oxford High School which left four students dead and six students and a teacher wounded.

Oakland County Circuit Judge Cheryl Matthews looks on during the trial of Jennifer Crumbley, 43, the mother of accused Oxford High School gunman Ethan Crumbley, in the courtroom of Oakland County Court in Pontiac, Michigan in her trial on four counts of involuntary manslaughter on February 2, 2024.

Attorney Shannon Smith points towards Jennifer Crumbley during closing arguments in the Oakland County courtroom Friday, Feb. 2, 2024, in Pontiac, Mich. Crumbley, the mother of the Michigan school shooter took the stand Friday in her trial for involuntary manslaughter after the jury heard the teenager blamed his parents, including his father, James Crumbley, for not getting him help before the 2021 attack that killed four students. (AP Photo/Carlos Osorio, Pool)

Oakland County Assistant Prosecutor Marc Keast, left, cross examines Jennifer Crumbley, 43, the mother of accused Oxford High School gunman Ethan Crumbley on the stand in the courtroom of Oakland County Court in Pontiac, Michigan during her trial on four counts of involuntary manslaughter on February 2, 2024. Ethan Crumbley, 17, her son, is serving a life sentence for the November 30, 2021 shooting at Oxford High School which left four students dead and six students and a teacher wounded.

Attorney Shannon Smith gives her closing arguments for her cient Jennifer Crumbley in the Oakland County courtroom Friday, Feb. 2, 2024, in Pontiac, Mich. Crumbley, the mother of the Michigan school shooter took the stand Friday in her trial for involuntary manslaughter after the jury heard the teenager blamed his parents, including his father, James Crumbley, for not getting him help before the 2021 attack that killed four students. (AP Photo/Carlos Osorio, Pool)

Oakland County Prosecutor Karen D. McDonald gives her closing statement in Jennifer Crumbley's involuntary manslaughter trial, Friday, Feb. 2, 2024, in Pontiac, Mich. Crumbley, the mother of the Michigan school shooter took the stand Friday in her trial for involuntary manslaughter after the jury heard the teenager blamed his parents, including his father, James Crumbley, for not getting him help before the 2021 attack that killed four students. (AP Photo/Carlos Osorio, Pool)

Jennifer Crumbley sits with her attorney Shannon Smith, Friday, Feb. 2, 2024, in Pontiac, Mich. Crumbley, the mother of the Michigan school shooter took the stand Friday in her trial for involuntary manslaughter after the jury heard the teenager blamed his parents, including his father, James Crumbley, for not getting him help before the 2021 attack that killed four students. (AP Photo/Carlos Osorio, Pool)

Oakland County Prosecutor Karen D. McDonald holds a gun case during her closing statement in Jennifer Crumbley's involuntary manslaughter trial, Friday, Feb. 2, 2024, in Pontiac, Mich. Crumbley, the mother of the Michigan school shooter took the stand Friday in her trial for involuntary manslaughter after the jury heard the teenager blamed his parents, including his father, James Crumbley, for not getting him help before the 2021 attack that killed four students. (AP Photo/Carlos Osorio, Pool)

Jennifer Crumbley, center, listens to her attorneys in the Oakland County courtroom Friday, Feb. 2, 2024, in Pontiac, Mich. Crumbley, 45, is charged with involuntary manslaughter. Prosecutors say she and her husband were grossly negligent and could have prevented the four deaths if they had tended to their son’s mental health. They’re also accused of making a gun accessible at home. (AP Photo/Carlos Osorio, Pool)

Jennifer Crumbley looks at a monitor as she testifies during her trial in the Oakland County courtroom Friday, Feb. 2, 2024, in Pontiac, Mich. Crumbley, 45, is charged with involuntary manslaughter. Prosecutors say she and her husband were grossly negligent and could have prevented the four deaths if they had tended to their son’s mental health. They’re also accused of making a gun accessible at home. (AP Photo/Carlos Osorio, Pool)

Jennifer Crumbley, front, is hugged by attorney Shannon Smith as the defense rests in her trial, Friday, Feb. 2, 2024, in Pontiac, Mich. Crumbley, 45, is charged with involuntary manslaughter. Prosecutors say she and her husband were grossly negligent and could have prevented the four deaths if they had tended to their son’s mental health. They’re also accused of making a gun accessible at home. (AP Photo/Carlos Osorio, Pool)

Jennifer Crumbley is hugged by attorney Shannon Smith as the defense rests in her trial, Friday, Feb. 2, 2024, in Pontiac, Mich. Crumbley, 45, is charged with involuntary manslaughter. Prosecutors say she and her husband were grossly negligent and could have prevented the four deaths if they had tended to their son’s mental health. They’re also accused of making a gun accessible at home. (AP Photo/Carlos Osorio, Pool)

Jennifer Crumbley, left, is hugged by attorney Shannon Smith as the defense rests in her trial, Friday, Feb. 2, 2024, in Pontiac, Mich. Crumbley, 45, is charged with involuntary manslaughter. Prosecutors say she and her husband were grossly negligent and could have prevented the four deaths if they had tended to their son’s mental health. They’re also accused of making a gun accessible at home. (AP Photo/Carlos Osorio, Pool)

Jennifer Crumbley enters the Oakland County courtroom Friday, Feb. 2, 2024, in Pontiac, Mich. Crumbley, the mother of the Michigan school shooter is on trial for involuntary manslaughter in a school shooting committed by her teenage son. Jennifer Crumbley is accused of making a gun accessible at home to Ethan Crumbley. He has pleaded guilty to killing four students and wounding more at Oxford High School in 2021, when he was 15 years old. (AP Photo/\Carlos Osorio)

Jennifer Crumbley enters the Oakland County courtroom Friday, Feb. 2, 2024, in Pontiac, Mich. Crumbley, the mother of the Michigan school shooter is on trial for involuntary manslaughter in a school shooting committed by her teenage son. Jennifer Crumbley is accused of making a gun accessible at home to Ethan Crumbley. He has pleaded guilty to killing four students and wounding more at Oxford High School in 2021, when he was 15 years old. (AP Photo/\Carlos Osorio)

Jennifer Crumbley testifies during her trial, Thursday, Feb. 1, 2024, in Pontiac, Mich. Crumbley, 45, is charged with involuntary manslaughter. Prosecutors say she and her husband were grossly negligent and could have prevented the four deaths if they had tended to their son’s mental health. They’re also accused of making a gun accessible at home. (Mandi Wright/Detroit Free Press via AP, Pool)

Defense attorney Shannon Smith, left, speaks to her client Jennifer Crumbley, back right, on the stand in the Oakland County courtroom on Thursday, Feb. 1, 2024, in Pontiac, Mich. Crumbley, the mother of the Michigan school shooter took the stand Thursday in her trial for involuntary manslaughter after the jury heard the teenager blamed his parents, including his father, James Crumbley, for not getting him help before the 2021 attack that killed four students. (Mandi Wright/Detroit Free Press via AP, Pool)

Jennifer Crumbley looks at the jury while she answers her attorney as she takes the stand in the Oakland County courtroom, on Thursday, Feb. 1, 2024, in Pontiac, Mich. Crumbley, the mother of the Michigan school shooter took the stand Thursday in her trial for involuntary manslaughter after the jury heard the teenager blamed his parents, including his father, James Crumbley, for not getting him help before the 2021 attack that killed four students. (Mandi Wright/Detroit Free Press via AP, Pool)

Judge Cheryl Matthews, left, hands Jennifer Crumbley photos that were entered into evidence as Crumbley's attorney Shannon Smith questions her as Crumbley testifies during her trial, Thursday, Feb. 1, 2024, in Pontiac, Mich. Crumbley, 45, is charged with involuntary manslaughter. Prosecutors say she and her husband were grossly negligent and could have prevented the four deaths if they had tended to their son’s mental health. They’re also accused of making a gun accessible at home. (Mandi Wright/Detroit Free Press via AP, Pool)

Oakland County Sheriff Lt. Timothy Willis holds up Ethan Crumbley's journal so the jury can see it as Jennifer Crumbley sits at Oxford High School in the Oakland County courtroom Thursday, Feb. 1, 2024 in Pontiac, Mich. Crumbley is being tried on four counts of involuntary manslaughter for the four students killed by her son, Ethan Crumbley in 2021. (Mandi Wright/Detroit Free Press via AP, Pool)

Lead investigator for the Oxford High School shooting Lt. Timothy Willis gets emotional as he testifies in the trial of Jennifer Crumbley in the Oakland County courtroom on Thursday, Feb. 1, 2024 in Pontiac, Mich.

Judge Cheryl Matthews hands lead investigator for the Oxford High School shooting Lt. Timothy Willis tissues as he gets emotional as he testifies in the trial of Jennifer Crumbley in the Oakland County courtroom on Thursday, Feb. 1, 2024 in Pontiac, Mich.

Jennifer Crumbley, left, sits with her attorney Shannon Smith in the Oakland County courtroom on Thursday, Feb. 1, 2024 in Pontiac, Mich. Crumbley, 45, is charged with involuntary manslaughter. She and husband James are accused of making a gun accessible at home and ignoring their son, Ethan Crumbley, mental health needs.

Craig Shilling, father of Justin Shilling, one of the victims in the Oxford School Shooting on Nov. 30, 2021, tears up as his son was referenced in court as Jennifer Crumbley, the mother of the shooter, is being tried in the Oakland County courtroom on Thursday, Feb. 1, 2024 in Pontiac, Mich. Crumbley, 45, is charged with involuntary manslaughter.

Jennifer Crumbley, left, stands with her attorney Shannon Smith after surveillance video was displayed for the jury showing the 2021 shooting at Oxford High School in the Oakland County courtroom on Thursday, Feb. 1, 2024 in Pontiac, Mich. Crumbley, 45, is charged with involuntary manslaughter. She and husband James are accused of making a gun accessible at home and ignoring their son, Ethan Crumbley, mental health needs.

Jennifer Crumbley, left, is hugged by her attorney Shannon Smith after viewing the surveillance video of Crumbley's son perpetrating the shooting at Oxford High School on Nov. 30, 2021 in the Oakland County courtroom on Thursday, Feb. 1, 2024 in Pontiac, Mich. Crumbley, 45, is charged with involuntary manslaughter. She and husband James are accused of making a gun accessible at home and ignoring their son, Ethan Crumbley, mental health needs.

Defendant Jennifer Crumbley, left, chats with her attorney Wednesday during her jury trial at the Oakland County Courthouse on January 31, 2024, in Pontiac, Mich. Jennifer Crumbley is charged with involuntary manslaughter for gross negligence in connection with her son Ethan Crumbley who shot and killed four classmates at Oxford High School in November 2021. James Crumbley, Ethan’s father, is also charged with involuntary manslaughter but will be tried separately. (Katy Kildee/The Detroit News/POOL via AP)

Luke Kirtley, who called the police after recognizing a vehicle parked outside of his office building from a wanted poster for Jennifer and James Crumbley on December 3, 2021, testifies during the jury trial of Jennifer Crumbley at the Oakland County Courthouse on January 31, 2024, in Pontiac, Mich. Jennifer Crumbley is charged with involuntary manslaughter for gross negligence in connection with her son Ethan Crumbley who shot and killed four classmates at Oxford High School in November 2021. James Crumbley, Ethan’s father, is also charged with involuntary manslaughter but will be tried separately. (Katy Kildee/The Detroit News/POOL via AP)

Officers with the Oakland County Sheriff's Department place handcuffs on defendant Jennifer Crumbley before her jury trial recesses for the day at the Oakland County Courthouse on January 31, 2024, in Pontiac, Mich. Jennifer Crumbley is charged with involuntary manslaughter for gross negligence in connection with her son Ethan Crumbley who shot and killed four classmates at Oxford High School in November 2021. James Crumbley, Ethan’s father, is also charged with involuntary manslaughter but will be tried separately. (Katy Kildee/The Detroit News/POOL via AP)

A crime scene photograph shows the mattress inside the art studio that Jennifer and James Crumbley were staying in when they were arrested in December 2021, during a jury trial for Jennifer Crumbley at the Oakland County Courthouse on January 31, 2024, in Pontiac, Mich. Jennifer Crumbley is charged with involuntary manslaughter for gross negligence in connection with her son Ethan Crumbley who shot and killed four classmates at Oxford High School in November 2021. James Crumbley, Ethan’s father, is also charged with involuntary manslaughter but will be tried separately. (Katy Kildee/The Detroit News/POOL via AP)

William Creer, who is employed by the Detroit Police Department and collects forensic evidence from crime scenes, testifies during the jury trial of Jennifer Crumbley at the Oakland County Courthouse on January 31, 2024, in Pontiac, Mich. Jennifer Crumbley is charged with involuntary manslaughter for gross negligence in connection with her son Ethan Crumbley who shot and killed four classmates at Oxford High School in November 2021. James Crumbley, Ethan’s father, is also charged with involuntary manslaughter but will be tried separately. (Katy Kildee/The Detroit News/POOL via AP)

A crime scene photograph shows medications, a bank card and four cell phones that were in the possession of Jennifer and James Crumbley when they were arrested in December 2021, during a jury trial for Jennifer Crumbley at the Oakland County Courthouse on January 31, 2024, in Pontiac, Mich. Jennifer Crumbley is charged with involuntary manslaughter for gross negligence in connection with her son Ethan Crumbley who shot and killed four classmates at Oxford High School in November 2021. James Crumbley, Ethan’s father, is also charged with involuntary manslaughter but will be tried separately. (Katy Kildee/The Detroit News/POOL via AP)

A crime scene photograph shows the art studio that Jennifer and James Crumbley were staying in when they were arrested in December 2021, during a jury trial for Jennifer Crumbley at the Oakland County Courthouse on January 31, 2024, in Pontiac, Mich. Jennifer Crumbley is charged with involuntary manslaughter for gross negligence in connection with her son Ethan Crumbley who shot and killed four classmates at Oxford High School in November 2021. James Crumbley, Ethan’s father, is also charged with involuntary manslaughter but will be tried separately. (Katy Kildee/The Detroit News/POOL via AP)

Defendant Jennifer Crumbley, left, wipes tears from her eyes while watching police video of her own arrest in December of 2021 during her jury trial at the Oakland County Courthouse on January 31, 2024, in Pontiac, Mich. Jennifer Crumbley is charged with involuntary manslaughter for gross negligence in connection with her son Ethan Crumbley who shot and killed four classmates at Oxford High School in November 2021. James Crumbley, Ethan’s father, is also charged with involuntary manslaughter but will be tried separately. (Katy Kildee/The Detroit News/POOL via AP)

Police bodycam footage of the arrest of Jennifer and James Crumbley is displayed on a screen during Jennifer Crumbley's jury trial at the Oakland County Courthouse on January 31, 2024, in Pontiac, Mich. Jennifer Crumbley is charged with involuntary manslaughter for gross negligence in connection with her son Ethan Crumbley who shot and killed four classmates at Oxford High School in November 2021. James Crumbley, Ethan’s father, is also charged with involuntary manslaughter but will be tried separately. (Katy Kildee/The Detroit News/POOL via AP)

Staff of the Oakland County Prosecutor's Office bring in pieces of evidence from the art studio that Jennifer and James Crumbley were staying in when they were arrested in December 2021, during a jury trial for Jennifer Crumbley at the Oakland County Courthouse on January 31, 2024, in Pontiac, Mich. Jennifer Crumbley is charged with involuntary manslaughter for gross negligence in connection with her son Ethan Crumbley who shot and killed four classmates at Oxford High School in November 2021. James Crumbley, Ethan’s father, is also charged with involuntary manslaughter but will be tried separately. (Katy Kildee/The Detroit News/POOL via AP)

Police bodycam footage of the arrest of Jennifer and James Crumbley is displayed on a screen during Jennifer Crumbley's jury trial at the Oakland County Courthouse on January 31, 2024, in Pontiac, Mich. Jennifer Crumbley is charged with involuntary manslaughter for gross negligence in connection with her son Ethan Crumbley who shot and killed four classmates at Oxford High School in November 2021. James Crumbley, Ethan’s father, is also charged with involuntary manslaughter but will be tried separately. (Katy Kildee/The Detroit News/POOL via AP)

Brian Meloche, a man with whom Jennifer Crumbley had been having an affair, reviews a record of messages sent between himself and Jennifer Crumbley during her jury trial at the Oakland County Courthouse on January 31, 2024, in Pontiac, Mich. Jennifer Crumbley is charged with involuntary manslaughter for gross negligence in connection with her son Ethan Crumbley who shot and killed four classmates at Oxford High School in November 2021. James Crumbley, Ethan’s father, is also charged with involuntary manslaughter but will be tried separately. (Katy Kildee/The Detroit News/POOL via AP)

Oakland County Prosecutor Karen McDonald, center right, speaks with fellow attorneys during a jury trial for Jennifer Crumbley at the Oakland County Courthouse on January 31, 2024, in Pontiac, Mich. Jennifer Crumbley is charged with involuntary manslaughter for gross negligence in connection with her son Ethan Crumbley who shot and killed four classmates at Oxford High School in November 2021. James Crumbley, Ethan’s father, is also charged with involuntary manslaughter but will be tried separately. (Katy Kildee/The Detroit News/POOL via AP)

Jennifer Crumbley raises her hand to swear under oath that she approves of her defense attorney's change in strategy while cross-examining Brian Meloche, with whom Jennifer Crumbley had been having an affair, during a jury trial for Jennifer Crumbley at the Oakland County Courthouse on January 31, 2024, in Pontiac, Mich. Jennifer Crumbley is charged with involuntary manslaughter for gross negligence in connection with her son Ethan Crumbley who shot and killed four classmates at Oxford High School in November 2021. James Crumbley, Ethan’s father, is also charged with involuntary manslaughter but will be tried separately. (Katy Kildee/The Detroit News/POOL via AP)

Defense attorney Shannon Smith, left, listens as Assistant Oakland County Prosecutor Marc Keast, right, speaks with judge Cheryl Matthews during a jury trial for Jennifer Crumbley at the Oakland County Courthouse on January 31, 2024, in Pontiac, Mich. Jennifer Crumbley is charged with involuntary manslaughter for gross negligence in connection with her son Ethan Crumbley who shot and killed four classmates at Oxford High School in November 2021. James Crumbley, Ethan’s father, is also charged with involuntary manslaughter but will be tried separately. (Katy Kildee/The Detroit News/POOL via AP)

Assistant Oakland County Prosecutor Marc Keast, left, speaks with Oakland County Prosecutor Karen McDonald, right, during a jury trial for Jennifer Crumbley at the Oakland County Courthouse on January 31, 2024, in Pontiac, Mich. Jennifer Crumbley is charged with involuntary manslaughter for gross negligence in connection with her son Ethan Crumbley who shot and killed four classmates at Oxford High School in November 2021. James Crumbley, Ethan’s father, is also charged with involuntary manslaughter but will be tried separately. (Katy Kildee/The Detroit News/POOL via AP)

Corporal David Shaw of the Detroit Police Special Response Team testifies during the jury trial of Jennifer Crumbley at the Oakland County Courthouse on January 31, 2024, in Pontiac, Mich. Jennifer Crumbley is charged with involuntary manslaughter for gross negligence in connection with her son Ethan Crumbley who shot and killed four classmates at Oxford High School in November 2021. James Crumbley, Ethan’s father, is also charged with involuntary manslaughter but will be tried separately. (Katy Kildee/The Detroit News/POOL via AP)

Judge Cheryl Matthews listens to Oakland County Prosecutor Karen McDonald during a jury trial for Jennifer Crumbley at the Oakland County Courthouse on January 31, 2024, in Pontiac, Mich. Jennifer Crumbley is charged with involuntary manslaughter for gross negligence in connection with her son Ethan Crumbley who shot and killed four classmates at Oxford High School in November 2021. James Crumbley, Ethan’s father, is also charged with involuntary manslaughter but will be tried separately. (Katy Kildee/The Detroit News/POOL via AP)

Defendant Jennifer Crumbley enters the courtroom Wednesday for her jury trial at the Oakland County Courthouse on January 31, 2024, in Pontiac, Mich. Jennifer Crumbley is charged with involuntary manslaughter for gross negligence in connection with her son Ethan Crumbley who shot and killed four classmates at Oxford High School in November 2021. James Crumbley, Ethan’s father, is also charged with involuntary manslaughter but will be tried separately. (Katy Kildee/The Detroit News/POOL via AP)

Defendant Jennifer Crumbley listens during her jury trial at the Oakland County Courthouse on January 31, 2024, in Pontiac, Mich. Jennifer Crumbley is charged with involuntary manslaughter for gross negligence in connection with her son Ethan Crumbley who shot and killed four classmates at Oxford High School in November 2021. James Crumbley, Ethan’s father, is also charged with involuntary manslaughter but will be tried separately. (Katy Kildee/The Detroit News/POOL via AP)

Jennifer Crumbley listens during her jury trial at the Oakland County Courthouse on January 31, 2024, in Pontiac, Mich. Jennifer Crumbley is charged with involuntary manslaughter for gross negligence in connection with her son Ethan Crumbley who shot and killed four classmates at Oxford High School in November 2021. James Crumbley, Ethan’s father, is also charged with involuntary manslaughter but will be tried separately. (Katy Kildee/The Detroit News/POOL via AP)

Defense attorney Shannon Smith cross-examines Brian Meloche, a friend of Jennifer Crumbley's, during a jury trial for Jennifer Crumbley at the Oakland County Courthouse on January 31, 2024, in Pontiac, Mich. Jennifer Crumbley is charged with involuntary manslaughter for gross negligence in connection with her son Ethan Crumbley who shot and killed four classmates at Oxford High School in November 2021. James Crumbley, Ethan’s father, is also charged with involuntary manslaughter but will be tried separately. (Katy Kildee/The Detroit News/POOL via AP)

A photograph of Ethan Crumbley's cell phone, taken shortly after he shot and killed four of his classmates at Oxford High School in November 2021, is displayed on a screen during a jury trial for his mother, Jennifer Crumbley, at the Oakland County Courthouse on January 31, 2024, in Pontiac, Mich. Jennifer Crumbley is charged with involuntary manslaughter for gross negligence in connection with the school shooting. James Crumbley, Ethan’s father, is also charged with involuntary manslaughter but will be tried separately. (Katy Kildee/The Detroit News/POOL via AP)

Lieutenant Sam Marzban of the Oakland County Sheriff's Office testifies during a jury trial for Jennifer Crumbley at the Oakland County Courthouse on January 31, 2024, in Pontiac, Mich. Jennifer Crumbley is charged with involuntary manslaughter for gross negligence in connection with her son Ethan Crumbley who shot and killed four classmates at Oxford High School in November 2021. James Crumbley, Ethan’s father, is also charged with involuntary manslaughter but will be tried separately. (Katy Kildee/The Detroit News/POOL via AP)

Defendant Jennifer Crumbley exits the courtroom Wednesday during her jury trial at the Oakland County Courthouse on January 31, 2024, in Pontiac, Mich. Jennifer Crumbley is charged with involuntary manslaughter for gross negligence in connection with her son Ethan Crumbley who shot and killed four classmates at Oxford High School in November 2021. James Crumbley, Ethan’s father, is also charged with involuntary manslaughter but will be tried separately. (Katy Kildee/The Detroit News/POOL via AP)

Sandra Arthur Cunningham takes notes during a jury trial for Jennifer Crumbley at the Oakland County Courthouse on January 31, 2024, in Pontiac, Mich. Jennifer Crumbley is charged with involuntary manslaughter for gross negligence in connection with her son Ethan Crumbley who shot and killed four classmates, including Phoebe Arthur, Arthur Cunningham's daughter, at Oxford High School in November 2021. James Crumbley, Ethan’s father, is also charged with involuntary manslaughter but will be tried separately. (Katy Kildee/The Detroit News/POOL via AP)

Officers with the Oakland County Sheriff's Office stand inside the courtroom during a jury trial for Jennifer Crumbley at the Oakland County Courthouse on January 31, 2024, in Pontiac, Mich. Jennifer Crumbley is charged with involuntary manslaughter for gross negligence in connection with her son Ethan Crumbley who shot and killed four classmates at Oxford High School in November 2021. James Crumbley, Ethan’s father, is also charged with involuntary manslaughter but will be tried separately. (Katy Kildee/The Detroit News/POOL via AP)

Steve St. Juliana listens during a jury trial for Jennifer Crumbley at the Oakland County Courthouse on January 31, 2024, in Pontiac, Mich. Jennifer Crumbley is charged with involuntary manslaughter for gross negligence in connection with her son Ethan Crumbley who shot and killed four classmates, including Hana St. Juliana, Steve St. Juliana's daughter, at Oxford High School in November 2021. James Crumbley, Ethan’s father, is also charged with involuntary manslaughter but will be tried separately. (Katy Kildee/The Detroit News/POOL via AP)

Former Oakland County Sheriff's Detective David Hendrick testifies during a jury trial for Jennifer Crumbley at the Oakland County Courthouse on January 31, 2024, in Pontiac, Mich. Jennifer Crumbley is charged with involuntary manslaughter for gross negligence in connection with her son Ethan Crumbley who shot and killed four classmates at Oxford High School in November 2021. James Crumbley, Ethan’s father, is also charged with involuntary manslaughter but will be tried separately. (Katy Kildee/The Detroit News/POOL via AP)

Defendant Jennifer Crumbley exits the courtroom Wednesday during her jury trial at the Oakland County Courthouse on January 31, 2024, in Pontiac, Mich. Jennifer Crumbley is charged with involuntary manslaughter for gross negligence in connection with her son Ethan Crumbley who shot and killed four classmates at Oxford High School in November 2021. James Crumbley, Ethan’s father, is also charged with involuntary manslaughter but will be tried separately. (Katy Kildee/The Detroit News/POOL via AP)

Defendant Jennifer Crumbley, left, enters the courtroom Wednesday for her jury trial at the Oakland County Courthouse on January 31, 2024, in Pontiac, Mich. Jennifer Crumbley is charged with involuntary manslaughter for gross negligence in connection with her son Ethan Crumbley who shot and killed four classmates at Oxford High School in November 2021. James Crumbley, Ethan’s father, is also charged with involuntary manslaughter but will be tried separately. (Katy Kildee/The Detroit News/POOL via AP)

Judge Cheryl Matthews speaks with attorneys during a jury trial for Jennifer Crumbley at the Oakland County Courthouse on January 31, 2024, in Pontiac, Mich. Jennifer Crumbley is charged with involuntary manslaughter for gross negligence in connection with her son Ethan Crumbley who shot and killed four classmates at Oxford High School in November 2021. James Crumbley, Ethan’s father, is also charged with involuntary manslaughter but will be tried separately. (Katy Kildee/The Detroit News/POOL via AP)

Defendant Jennifer Crumbley, left, chats with her attorney Wednesday during her jury trial at the Oakland County Courthouse on January 31, 2024, in Pontiac, Mich. Jennifer Crumbley is charged with involuntary manslaughter for gross negligence in connection with her son Ethan Crumbley who shot and killed four classmates at Oxford High School in November 2021. James Crumbley, Ethan’s father, is also charged with involuntary manslaughter but will be tried separately. (Katy Kildee/The Detroit News/POOL via AP)

Judge Cheryl Matthews speaks with attorneys during a jury trial for Jennifer Crumbley at the Oakland County Courthouse on January 31, 2024, in Pontiac, Mich. Jennifer Crumbley is charged with involuntary manslaughter for gross negligence in connection with her son Ethan Crumbley who shot and killed four classmates at Oxford High School in November 2021. James Crumbley, Ethan’s father, is also charged with involuntary manslaughter but will be tried separately. (Katy Kildee/The Detroit News/POOL via AP)

Defendant Jennifer Crumbley, left, and her defense attorney, Shannon Smith, right, listen during Jennifer Crumbley's jury trial at the Oakland County Courthouse on January 31, 2024, in Pontiac, Mich. Jennifer Crumbley is charged with involuntary manslaughter for gross negligence in connection with her son Ethan Crumbley who shot and killed four classmates at Oxford High School in November 2021. James Crumbley, Ethan’s father, is also charged with involuntary manslaughter but will be tried separately. (Katy Kildee/The Detroit News/POOL via AP)

Lieutenant Sam Marzban of the Oakland County Sheriff's Office testifies during a jury trial for Jennifer Crumbley at the Oakland County Courthouse on January 31, 2024, in Pontiac, Mich. Jennifer Crumbley is charged with involuntary manslaughter for gross negligence in connection with her son Ethan Crumbley who shot and killed four classmates at Oxford High School in November 2021. James Crumbley, Ethan’s father, is also charged with involuntary manslaughter but will be tried separately. (Katy Kildee/The Detroit News/POOL via AP)

Defense attorney Shannon Smith speaks with judge Cheryl Matthews during a jury trial for Jennifer Crumbley at the Oakland County Courthouse on January 31, 2024, in Pontiac, Mich. Jennifer Crumbley is charged with involuntary manslaughter for gross negligence in connection with her son Ethan Crumbley who shot and killed four classmates at Oxford High School in November 2021. James Crumbley, Ethan’s father, is also charged with involuntary manslaughter but will be tried separately. (Katy Kildee/The Detroit News/POOL via AP)

Officers with the Oakland County Sheriff's Office remove handcuffs from defendant Jennifer Crumbley as her jury trial resumes after a recess at the Oakland County Courthouse on January 31, 2024, in Pontiac, Mich. Jennifer Crumbley is charged with involuntary manslaughter for gross negligence in connection with her son Ethan Crumbley who shot and killed four classmates at Oxford High School in November 2021. James Crumbley, Ethan’s father, is also charged with involuntary manslaughter but will be tried separately. (Katy Kildee/The Detroit News/POOL via AP)

Brian Meloche, a friend of Jennifer Crumbley's, testifies during her jury trial at the Oakland County Courthouse on January 31, 2024, in Pontiac, Mich. Jennifer Crumbley is charged with involuntary manslaughter for gross negligence in connection with her son Ethan Crumbley who shot and killed four classmates at Oxford High School in November 2021. James Crumbley, Ethan’s father, is also charged with involuntary manslaughter but will be tried separately. (Katy Kildee/The Detroit News/POOL via AP)

Judge Cheryl Matthews gives instruction to members of the jury during a jury trial for Jennifer Crumbley at the Oakland County Courthouse on January 31, 2024, in Pontiac, Mich. Jennifer Crumbley is charged with involuntary manslaughter for gross negligence in connection with her son Ethan Crumbley who shot and killed four classmates at Oxford High School in November 2021. James Crumbley, Ethan’s father, is also charged with involuntary manslaughter but will be tried separately. (Katy Kildee/The Detroit News/POOL via AP)

Judge Cheryl Matthews, interviews juror #15 during Jennifer Crumbley's jury trial at Oakland County Courthouse, Tuesday.

Defendant Jennifer Crumbley listens to witness testimony during her jury trial at Oakland County Courthouse in Pontiac, January 30, 2024. Jennifer Crumbley is charged with involuntary manslaughter in connection with the Oxford High School shooting in which her son Ethan Crumbley murdered four classmates with a handgun. James Crumbley, Ethan's father, is also charged with involuntary manslaughter but will be tried separately.

Witness and Oakland County Sheriff's Detective Sgt. Matthew Peschke testifies during Jennifer Crumbley's jury trial at Oakland County Courthouse, Tuesday.

Witness Detective Adam Stoyek of Oakland County Sheriff gives testimony during Jennifer Crumbley’s jury trial at Oakland County Courthouse. January 30, 2024, in Pontiac, MI. Clarence Tabb Jr./The Detroit News via AP

Witness Amanda Holland, a former co-worker of Jennifer Crumbley at Princeton Management, gives testimony during Jennifer CrumbleyÕs jury trial at Oakland County Courthouse. January 30, 2024, in Pontiac, MI. Clarence Tabb Jr./The Detroit News via AP

Photo of the Crumbley’s home during Jennifer Crumbley’s jury trial at Oakland County Courthouse. January 30, 2024, in Pontiac, MI. Clarence Tabb Jr./The Detroit News via AP

Photo of Ethan Crumbley’s bedroom at his home during Jennifer Crumbley’s jury trial at Oakland County Courthouse. January 30, 2024, in Pontiac, MI. Clarence Tabb Jr./The Detroit News via AP

Photo of Ethan Crumbley’s bedroom at his home during Jennifer Crumbley’s jury trial at Oakland County Courthouse. January 30, 2024, in Pontiac, MI. Clarence Tabb Jr./The Detroit News via AP

Assistant Oakland County Prosecutor Marc Keast’s cross-examination of witness Amanda Holland former co-worker of Jennifer Crumbley at Princeton Management during Jennifer Crumbley’s jury trial at Oakland County Courthouse. January 30, 2024, in Pontiac, MI. Clarence Tabb Jr./The Detroit News via AP

Defendant Jennifer Crumbley enters the courtroom for her jury trial at Oakland County Courthouse. January 30, 2024, in Pontiac, MI. Clarence Tabb Jr./The Detroit News via AP

Defense Attorney Shannon Smith cross-examines witness Andrew (Andy) Smith, of Princeton Management during the jury trial of defendant Jennifer Crumbley at Oakland County Courthouse. January 30, 2024, in Pontiac, Mich. Jennifer Crumbley is the mother of Oxford school shooter Ethan Crumbley.

Andrew (Andy) Smith, of Princeton Management, Jennifer Crumbley's former boss, gives testimony on the series of texts that he received from her on the day of the Oxford High School shooting. Smith testified on Tuesday, January 30, 2024, in Pontiac, Mich. Jennifer Crumbley is the mother of Oxford school shooter Ethan Crumbley.

Judge Cheryl Matthews listens to witness testimony in Jennifer Crumbley's jury trial at Oakland County Courthouse, January 26, 2024, in Pontiac, Mich. Jennifer Crumbley is the mother of Oxford school shooter Ethan Crumbley.

This series of texts that Andrew (Andy) Smith, of Princeton Management, Jennifer Crumbley's former boss, received on the day of the shooting is displayed for the jury on January 30, 2024, in Pontiac, Mich. during Jennifer Crumbley's on-going trial. Jennifer Crumbley is the mother of Oxford school shooter Ethan Crumbley.

Andrew (Andy) Smith, of Princeton Management, Jennifer Crumbley's former boss, gives testimony on the series of texts that he received from her on the day of the Oxford High School shooting. Smith testified on Tuesday, January 30, 2024, in Pontiac, Mich. Jennifer Crumbley is the mother of Oxford school shooter Ethan Crumbley.

Defense Attorney Shannon Smith listens to the prosecutor's cross-examination of witness Andrew (Andy) Smith, of Princeton Management during the jury trial of defendant Jennifer Crumbley at Oakland County Courthouse on January 30, 2024, in Pontiac, Mich. Jennifer Crumbley is the mother of Oxford school shooter Ethan Crumbley.

Nicholas Ejak, dean of students at Oxford H.S. gives testimony on a letter he received from teacher Jacquelyn Kubina regarding a letter about Ethan Crumbley’s behavior. January 30, 2024, in Pontiac, MI. Clarence Tabb Jr./The Detroit News via AP

The letter that Nicholas Ejak, dean of students received from teacher Jacquelyn Kubina about Ethan Crumbley’s behavior. January 30, 2024, in Pontiac, MI. Clarence Tabb Jr./The Detroit News via AP

The drawing that Ethan Crumbley made during class time at Oxford High School. January 30, 2024, in Pontiac, MI. Clarence Tabb Jr./The Detroit News via AP

Oxford High School counselor Shawn Hopkins testifies during the trial of Jennifer Crumbley in the Oakland County courtroom of Judge Cheryl Matthews on Monday, Jan. 29, 2024, in Pontiac, Mich.

Police footage of James Crumbley, left, Jennifer Crumbley, center, and Ethan Crumbley in an interview room at the Oakland County Sheriff’s Department on Nov. 30, 2021, after Ethan shot and killed four students at Oxford High School, is displayed Monday, Jan. 29, 2024, in an Oakland County courtroom, in Pontiac, Mich., during the trial of Jennifer, who is charged with involuntary manslaughter.

Police footage of James Crumbley, top center, and his wife, Jennifer, right, as they are interviewed by Oakland County Sheriff deputies after their son, Ethan Crumbley, shot and killed four students at Oxford High School on Nov. 30, 2021, is displayed Monday, Jan. 29, 2024, in an Oakland County courtroom, in Pontiac, Mich.

Police footage of Ethan Crumbley sitting by himself in an interview room at the Oakland County Sheriff’s Department while waiting on his parents on Nov. 30, 2021, after he shot and killed four students at Oxford High School, is displayed Monday, Jan. 29, 2024, in an Oakland County courtroom, in Pontiac, Mich., during the trial of Jennifer Crumbley, who is charged with involuntary manslaughter. Crumbley and her husband, James Crumbley, who will stand trial in March, are the first parents in the U.S. to be charged in a mass school shooting committed by their child. (Oakland County Sheriff’s Department/Detroit Free Press via AP, Pool)

Jennifer Crumbley, left, stands with her attorney, Shannon Smith, in an Oakland County courtroom, Monday, Jan. 29, 2024, in Pontiac, Mich. Crumbley, 45, is on trial for involuntary manslaughter, the first time parents have been charged in a U.S. mass school shooting.

Oakland County Judge Cheryl Matthews presides during the trial of Jennifer Crumbley, Monday, Jan. 29, 2024, in Pontiac, Mich. Crumbley, 45, is on trial for involuntary manslaughter, the first time parents have been charged in a U.S. mass school shooting.

Oakland County Prosecutor Karen McDonald questions witness Kira Pennock during the trial of Jennifer Crumbley in an Oakland County courtroom, Monday, Jan. 29, 2024, in Pontiac, Mich. Crumbley, 45, is on trial for involuntary manslaughter, the first time parents have been charged in a U.S. mass school shooting. She and her husband are accused of contributing to the deaths at Oxford High School by neglecting the needs of their son, Ethan Crumbley, and making a gun accessible at home.

Jennifer Crumbley, left, raises her right hand as she is asked a question in an Oakland County courtroom with her attorney, Shannon Smith, at right, Monday, Jan. 29, 2024, in Pontiac, Mich. Crumbley, 45, is on trial for involuntary manslaughter, the first time parents have been charged in a U.S. mass school shooting.

Jennifer Crumbley enters court on day three of her trial in an Oakland County courtroom, Monday, Jan. 29, 2024, in Pontiac, Mich. Crumbley, 45, is on trial for involuntary manslaughter, the first time parents have been charged in a U.S. mass school shooting.

Jennifer Crumbley stands in an Oakland County courtroom, Monday, Jan. 29, 2024, in Pontiac, Mich. Crumbley, 45, is on trial for involuntary manslaughter, the first time parents have been charged in a U.S. mass school shooting. She and her husband are accused of contributing to the deaths at Oxford High School by neglecting the needs of their son, Ethan Crumbley, and making a gun accessible at home.

Defendant Jennifer Crumbley, mother of school shooter Ethan Crumbley, surveys the courtroom during her jury trial at Oakland County Courthouse in Pontiac, Mich. on January 26, 2024.

Parents of shooting victims, Craig Shilling, (foreground) and Steve St. Juliana, (background) listen to former Detective with Oakland County, Edward Wagrowski's witness testimony on the shooter’s shooting path during the day of the shooting. Wagrowski testified during Jennifer Crumbley’s jury trial at Oakland County Courthouse in Pontiac, Mich. on January 26, 2024.

Text messages between Jennifer Crumbley and her boss Andrew Smith during the day of the shooting are displayed in court.

Text messages between Jennifer Crumbley and her boss Andrew Smith are displayed in court.

Threatening text messages Jennifer Crumbley received on Facebook Messenger after her son was arrested for the Oxford High School shooting are displayed in court during her jury trial, Friday.

Text messages between Jennifer Crumbley and her son Ethan Crumbley during a period he thought someone was in their home are projected on a screen during Jennifer Crumbley’s jury trial at Oakland County Courthouse, January 26, 2024, in Pontiac, Mich.

Text messages between Jennifer Crumbley and her son Ethan Crumbley during a period he thought someone was in their home are projected on a screen during Jennifer Crumbley’s jury trial at Oakland County Courthouse, January 26, 2024, in Pontiac, Mich.

Defendant Jennifer Crumbley listens to witness testimony during her jury trial at Oakland County Courthouse, January 26, 2024, in Pontiac, Mich.

Defendant Jennifer Crumbley enters the courtroom for her jury trial at Oakland County Courthouse. January 26, 2024, in Pontiac, MI. Clarence Tabb Jr./The Detroit News, Pool via AP

Consultant with the Secret Service and former Detective with Oakland County, Edward Wagrowski, gets emotional while giving testimony on the shooter’s shooting path during the day of the shooting during Jennifer Crumbley’s jury trial at Oakland County Courthouse. January 26, 2024, in Pontiac, MI. Clarence Tabb Jr./The Detroit News, Pool via AP

Consultant with the Secret Service and former Detective with Oakland County, Edward Wagrowski, gets emotional while giving testimony on the shooter’s shooting path during the day of the shooting during Jennifer Crumbley’s jury trial at Oakland County Courthouse. January 26, 2024, in Pontiac, MI. Clarence Tabb Jr./The Detroit News, Pool via AP

Defense Attorney Shannon Smith, argues for the admissibility of evidence before the start of the trial. Jennifer Crumbley jury trial at Oakland County Courthouse. January 26, 2024, in Pontiac, MI. Clarence Tabb Jr./The Detroit News, Pool via AP

Judge Cheryl Matthews, listens to the arguments on the admissibility of evidence before the start of Jennifer Crumbley’s jury trial at Oakland County Courthouse. January 26, 2024, in Pontiac, MI. Clarence Tabb Jr./The Detroit News, Pool via AP

L-r, Assistant Prosecutor, Marc Keast, and Oakland County Prosecutor, Karen McDonald confer before the start of Defendant Jennifer Crumbley’s jury trial at Oakland County Courthouse. January 26, 2024, in Pontiac, MI. Clarence Tabb Jr./The Detroit News, Pool via AP

Defense Attorney Shannon Smith, argues for the admissibility of evidence before the start of the trial. Jennifer Crumbley jury trial at Oakland County Courthouse. January 26, 2024, in Pontiac, MI. Clarence Tabb Jr./The Detroit News, Pool via AP

Judge Cheryl Matthews, listens to the arguments on the admissibility of evidence before the start of Jennifer Crumbley’s jury trial at Oakland County Courthouse. January 26, 2024, in Pontiac, MI. Clarence Tabb Jr./The Detroit News, Pool via AP

Jennifer Crumbley, left, looks on as the jury is seated as her attorney, Shannon Smith, stands at right in the Oakland County courtroom of Judge Cheryl Matthews on Thursday Jan. 25, 2024 in Pontiac, Mich. Prosecutors arguing that Crumbley is partly responsible for the deaths of four students told jurors Thursday that the tragedy could have been easily prevented when she was confronted with his violent drawings just a few hours earlier. (Mandi Wright/Detroit Free Press via AP, Pool)

Oakland County Judge Cheryl Matthews swears in the jury on Thursday Jan. 25, 2024 to begin the trial of Jennifer Crumbley in Ponitiac, Mich. Crumbley, 45, is charged with involuntary manslaughter in the Nov. 30, 2021, attack. The case against her and her husband, who will stand trial in March, marks the first time that a parent has been charged in a mass shooting at a U.S. school. Prosecutors say the Crumbleys were grossly negligent and that their son's actions were foreseeable. (Mandi Wright/Detroit Free Press via AP, Pool)

Jennifer Crumbley enters the courtroom of Oakland County Judge Cheryl Matthews on Thursday Jan. 25, 2024 to begin her trial on Thursday Jan. 25, 2024 to begin the trial of Jennifer Crumbley in Ponitiac, Mich. Crumbley, 45, is charged with involuntary manslaughter in the Nov. 30, 2021, attack. The case against her and her husband, who will stand trial in March, marks the first time that a parent has been charged in a mass shooting at a U.S. school. Prosecutors say the Crumbleys were grossly negligent and that their son's actions were foreseeable. (Mandi Wright/Detroit Free Press via AP, Pool)

Oxford High School educator Molly Darnell shows the jury her gun shot wound as she is questioned by Oakland County Prosecutor Karen McDonald in the courtroom of Oakland County Judge Cheryl Matthews on Thursday Jan. 25, 2024 in Pontiac, Mich. Jennifer Crumbley , 45, is charged with involuntary manslaughter in the Nov. 30, 2021, attack. The case against her and her husband, who will stand trial in March, marks the first time that a parent has been charged in a mass shooting at a U.S. school. Prosecutors say the Crumbleys were grossly negligent and that their son's actions were foreseeable.

Jennifer Crumbley's attorney Shannon Smith makes opening statements in the courtroom of Oakland County Judge Cheryl Matthews on Thursday Jan. 25, 2024 to begin the trial for her client in Ponitiac, Mich. Crumbley, 45, is charged with involuntary manslaughter in the Nov. 30, 2021, attack. The case against her and her husband, who will stand trial in March, marks the first time that a parent has been charged in a mass shooting at a U.S. school. Prosecutors say the Crumbleys were grossly negligent and that their son's actions were foreseeable.

Jennifer Crumbley, left, looks on as the jury is seated as her attorney, Shannon Smith, stands at right in the Oakland County courtroom of Judge Cheryl Matthews on Thursday Jan. 25, 2024 in Pontiac, Mich. Crumbley, 45, is charged with involuntary manslaughter in the Nov. 30, 2021, attack. The case against her and her husband, who will stand trial in March, marks the first time that a parent has been charged in a mass shooting at a U.S. school. Prosecutors say the Crumbleys were grossly negligent and that their son's actions were foreseeable. (Mandi Wright/Detroit Free Press via AP, Pool)

Oakland County Assistant Prosecutor Marc Keast displays the homework sheet of Ethan Crumbley, the Oxford High School shooter, during his opening statements in the trial of Jennifer Crumbley in the Oakland County Judge Cheryl Matthews on Thursday Jan. 25, 2024 in Pontiac, Mich.

Assistant Oakland County prosecutor Marc Keast delivers opening statements during the trial of Jennifer Crumbley in the courtroom of Oakland County Judge Cheryl Matthews on Thursday Jan. 25, 2024 in Pontiac, Mich.

Oxford High School assistant principal Kristy Gibson-Marshall testifies in the courtroom of Oakland County Judge Cheryl Matthews on Thursday, Jan. 25, 2024 in Pontiac, Mich. Jennifer Crumbley , 45, is charged with involuntary manslaughter in the Nov. 30, 2021, attack. The case against her and her husband, who will stand trial in March, marks the first time that a parent has been charged in a mass shooting at a U.S. school. Prosecutors say the Crumbleys were grossly negligent and that their son's actions were foreseeable.

Jennifer Crumbley enters the courtroom of Oakland County Judge Cheryl Matthews on Thursday Jan. 25, 2024 to begin her trial in Pontiac, Mich. Crumbley, 45, is charged with involuntary manslaughter in the Nov. 30, 2021, attack. The case against her and her husband, who will stand trial in March, marks the first time that a parent has been charged in a mass shooting at a U.S. school. Prosecutors say the Crumbleys were grossly negligent and that their son's actions were foreseeable. (Mandi Wright/Detroit Free Press via AP, Pool)