Jury finds James Crumbley guilty of involuntary manslaughter

Nicole Beausoleil, mother of Madisyn Baldwin, right, reaches over to grab the hand of Craig Shilling, father of Justin Shilling. Jury finds James Crumbley guilty of involuntary manslaughter in the courtroom of Cheryl Matthews in Oakland County Court in Pontiac, Mich. on March 14, 2024.

Oakland County prosecutor Karen McDonald hugs Steve St. Juliana, father of Hana St. Juliana, after the verdict. Jury finds James Crumbley guilty of involuntary manslaughter in the courtroom of Cheryl Matthews in Oakland County Court in Pontiac, Mich. on March 14, 2024.

Craig Shilling, left, father of shooting victim Justin Shilling, listens to the verdict along with other parents of Oxford victims in the courtroom. The Jury found James Crumbley, father of convicted school shooter Ethan Crumbley, guilty of involuntary manslaughter in the courtroom of Judge Cheryl Matthews in Oakland County Court in Pontiac, Mich. on March. 14, 2024.

Oakland County prosecutor Karen McDonald hugs Nicole Beausoleil, mother of Madisyn Baldwin, left, after the verdict. The jury found James Crumbley guilty of involuntary manslaughter.

From left, Oakland County prosecutor Karen McDonald and assistant prosecutor Marc Keast walk down the hallway outside the courtroom. Jury deliberation continues in the James Crumbley trial in the courtroom of Cheryl Matthews in Oakland County Court in Pontiac, Mich. on Mar. 14, 2024.

From left, Assistant prosecutor Marc Keast and Oakland County prosecutor Karen McDonald appear briefly in the courtroom. Jury deliberation continues in the James Crumbley trial in the courtroom of Cheryl Matthews in Oakland County Court in Pontiac, Mich. on Mar. 14, 2024.

Craig Shilling, father of Justin Shilling, one of the Oxford High School shooting victims talks with a member of the media. Jury deliberation continues in the James Crumbley trial in the courtroom of Cheryl Matthews in Oakland County Court in Pontiac, Mich. on Mar. 14, 2024.

Jury seats are empty as deliberation continues in the James Crumbley trial in the courtroom of Cheryl Matthews in Oakland County Court in Pontiac, Mich. on Mar. 14, 2024.

Media members gather down the hall from the courtroom as deliberation continues in the James Crumbley trial in the courtroom of Cheryl Matthews in Oakland County Court in Pontiac, Mich. on Mar. 14, 2024.

Oakland County Prosecutor Karen McDonald begins closing arguments in the case against James Crumbley in the Oakland County Courtroom of Cheryl Matthews on Wednesday, March, 13, 2024 in Pontiac, Mich. Crumbley is charged with involuntary manslaughter, accused of failing to secure a gun at home and ignoring his son's mental health. Ethan Crumbley killed four students at Oxford High School in 2021. (Mandi Wright/Detroit Free Press via AP, Pool)

Oakland County Prosecutor Karen McDonald demonstrates how swiftly she was able to insert a gun lock during closing statements in the trial of James Crumbley, Wednesday, March, 13, 2024 in Pontiac, Mich. Crumbley is charged with involuntary manslaughter, accused of failing to secure a gun at home and ignoring his son's mental health. Ethan Crumbley killed four students at Oxford High School in 2021. (Mandi Wright/Detroit Free Press via AP, Pool)

Oakland County Prosecutor Karen McDonald demonstrates how swiftly she was able to insert a gun lock during closing statements in the trial of James Crumbley, Wednesday, March, 13, 2024 in Pontiac, Mich. Crumbley is charged with involuntary manslaughter, accused of failing to secure a gun at home and ignoring his son's mental health. Ethan Crumbley killed four students at Oxford High School in 2021. (Mandi Wright/Detroit Free Press via AP, Pool)

Nicole Beausoleil mother of Madisyn Baldwin, who was killed in a mass shooting at Oxford High School in 2021, becomes emotional as Oakland County Prosecutor Karen McDonald makes closing statements that include autopsy reports in the trial against James Crumbley on Wednesday, March, 13, 2024 in Pontiac, Mich. Crumbley is charged with involuntary manslaughter, accused of failing to secure a gun at home and ignoring his son's mental health. Ethan Crumbley killed four students at Oxford High School in 2021. (Mandi Wright/Detroit Free Press via AP, Pool)

Mariell Lehman attorney for James Crumbley makes closing statements in the Oakland County Courtroom of Cheryl Matthews on Wednesday, March, 13, 2024 in Pontiac, Mich. Crumbley is charged with involuntary manslaughter, accused of failing to secure a gun at home and ignoring his son's mental health. Ethan Crumbley killed four students at Oxford High School in 2021. (Mandi Wright/Detroit Free Press via AP, Pool)

A cart-load of evidence is brought in by the Oakland County Prosecutors for their closing arguments in the case against James Crumbley in the Oakland County Courtroom of Cheryl Matthews on Wednesday, March, 13, 2024 in Pontiac, Mich. Crumbley is charged with involuntary manslaughter, accused of failing to secure a gun at home and ignoring his son's mental health. Ethan Crumbley killed four students at Oxford High School in 2021. (Mandi Wright/Detroit Free Press via AP, Pool)

Closing arguments begin in the trial against James Crumbley, standing at left, in the Oakland County Courtroom of Cheryl Matthews on Wednesday, March, 13, 2024 in Pontiac, Mich. Crumbley is charged with involuntary manslaughter, accused of failing to secure a gun at home and ignoring his son's mental health. Ethan Crumbley killed four students at Oxford High School in 2021. (Mandi Wright/Detroit Free Press via AP, Pool)

Photos of the four students killed in the Oxford High School shooting appear on a screen as closing arguments begin in the trial of James Crumbley who sits second from left in the Oakland County Courtroom of Cheryl Matthews on Wednesday, March, 13, 2024 in Pontiac, Mich. Crumbley is charged with involuntary manslaughter, accused of failing to secure a gun at home and ignoring his son's mental health. Ethan Crumbley killed four students at Oxford High School in 2021. (Mandi Wright/Detroit Free Press via AP, Pool)

Closing arguments begin in the trial against James Crumbley in the Oakland County Courtroom of Cheryl Matthews on Wednesday, March, 13, 2024 in Pontiac, Mich. Crumbley is charged with involuntary manslaughter, accused of failing to secure a gun at home and ignoring his son's mental health. Ethan Crumbley killed four students at Oxford High School in 2021. (Mandi Wright/Detroit Free Press via AP, Pool)

James Crumbley enters the Oakland County Courtroom of Cheryl Matthews on Wednesday, March, 13, 2024 in Pontiac, Mich. Crumbley is charged with involuntary manslaughter, accused of failing to secure a gun at home and ignoring his son's mental health. Ethan Crumbley killed four students at Oxford High School in 2021. (Mandi Wright/Detroit Free Press via AP, Pool)

Karen Crumbley, the sister of James Crumbley takes the stand in the Oakland County Courtroom of Cheryl Matthews on Wednesday, March, 13, 2024 in Pontiac, Mich. James Crumbley is charged with involuntary manslaughter, accused of failing to secure a gun at home and ignoring his son's mental health. Ethan Crumbley killed four students at Oxford High School in 2021. (Mandi Wright/Detroit Free Press via AP, Pool)

James Crumbley turns to look for family members after it was announced they were present in the Oakland County Courtroom of Cheryl Matthews on Wednesday, March, 13, 2024 in Pontiac, Mich. Crumbley is charged with involuntary manslaughter, accused of failing to secure a gun at home and ignoring his son's mental health. Ethan Crumbley killed four students at Oxford High School in 2021. (Mandi Wright/Detroit Free Press via AP, Pool)

James Crumbley raises his right hand to swear he aware of his rights and has chosen not to testify in his case in the Oakland County Courtroom of Cheryl Matthews on Wednesday, March, 13, 2024 during his trial on four counts of involuntary manslaughter for the four students killed in the 2021 Oxford High School shooting perpetrated by his son Ethan Crumbley.

Mariell Lehman, left, attorney for James Crumbley stands at the bench with Oakland County Prosecutor Karen McDonald and Oakland County Assistant Prosecutor Marc Keast as Karen Crumbley, James CrumbleyÍs sister takes the stand in the Oakland County Courtroom of Cheryl Matthews on Wednesday, March, 13, 2024 during James CrumbleyÍs trial on four counts of involuntary manslaughter for the four students killed in the 2021 Oxford High School shooting perpetrated by his son Ethan Crumbley.

James Crumbley enters the Oakland County Courtroom of Cheryl Matthews on Wednesday March, 13, 2024 during his trial on four counts of involuntary manslaughter for the four students killed in the 2021 Oxford High School shooting perpetrated by his son Ethan Crumbley.

James Crumbley testifies that he is not going to take the stand in his defense as he stands with his attorney Mariell Lehman in the Oakland County Courtroom of Cheryl Matthews on Wednesday, March, 13, 2024 during his trial on four counts of involuntary manslaughter for the four students killed in the 2021 Oxford High School shooting perpetrated by his son Ethan Crumbley.

Lt. Timothy Willis holds up Ethan Crumbley's journal during the trial of James Crumbley, the father of a Michigan school shooter, Tuesday, March 12, 2024, in Pontiac, Mich. Crumbley is the father of Ethan Crumbley, who killed four students and wounded more at Oxford High School. Crumbley is charged with involuntary manslaughter for failing to safely store a handgun used by his son in the 2021 attack and ignoring signs of the boy's mental despair. (AP Photo/Carlos Osorio, Pool)

James Crumbley, left, and defense attorney Mariell Lehman, right, stand as the jury enters the courtroom, Tuesday, March 12, 2024 in Pontiac, Mich. Crumbley is the father of Ethan Crumbley, who killed four students and wounded more at Oxford High School. Crumbley is charged with involuntary manslaughter. He's accused of failing to safely store a handgun used by his son in the 2021 attack and ignoring signs of the boy's mental despair. (AP Photo/\Carlos Osorio, Pool)

Lt. Timothy Willis testifies during the trial of James Crumbley, the father of a Michigan school shooter continues, Tuesday, March 12, 2024 in Pontiac, Mich.Crumbley is the father of Ethan Crumbley, who killed four students and wounded more at Oxford High School. Crumbley is charged with involuntary manslaughter. He's accused of failing to safely store a handgun used by his son in the 2021 attack and ignoring signs of the boy's mental despair. (AP Photo/Carlos Osorio, Pool)

Lt. Timothy Willis holds up Ethan Crumbley's journal during the trial of James Crumbley, the father of a Michigan school shooter, Tuesday, March 12, 2024, in Pontiac, Mich. Crumbley is the father of Ethan Crumbley, who killed four students and wounded more at Oxford High School. Crumbley is charged with involuntary manslaughter for failing to safely store a handgun used by his son in the 2021 attack and ignoring signs of the boy's mental despair. (AP Photo/Carlos Osorio, Pool)

In a frame grab from video, a journal entry from Ethan Crumbley is displayed during the trial of James Crumbley, the father of a Michigan school shooter, Tuesday, March 12, 2024, in Pontiac, Mich. Crumbley is the father of Ethan Crumbley, who killed four students and wounded more at Oxford High School. Crumbley is charged with involuntary manslaughter for failing to safely store a handgun used by his son in the 2021 attack and ignoring signs of the boy's mental despair. (AP Photo/Carlos Osorio, Pool)

In a frame grab from video, a journal entry from Ethan Crumbley is displayed during the trial of James Crumbley, the father of a Michigan school shooter, Tuesday, March 12, 2024, in Pontiac, Mich. Crumbley is the father of Ethan Crumbley, who killed four students and wounded more at Oxford High School. Crumbley is charged with involuntary manslaughter forf failing to safely store a handgun used by his son in the 2021 attack and ignoring signs of the boy's mental despair. (AP Photo/Carlos Osorio, Pool)

Nicole Beausoleil, mother of Oxford High shooting victim Madisyn Baldwin, sits as video is played showing the shooting at Oxford H.S., Tuesday, March 12, 2024, in Pontiac, Mich. James Crumbley is the father of Ethan Crumbley, who killed four students and wounded more at Oxford High School and is charged with involuntary manslaughter for failing to safely store a handgun used by his son in the 2021 attack and ignoring signs of the boy's mental despair. (AP Photo/Carlos Osorio, Pool)

Nicole Beausoleil, mother of Oxford High shooting victim Madisyn Baldwin, sits in court, Tuesday, March 12, 2024, in Pontiac, Mich., as video is played showing the shooting at Oxford H.S. James Crumbley is the father of Ethan Crumbley, who killed four students and wounded more at Oxford High School and is charged with involuntary manslaughter for failing to safely store a handgun used by his son in the 2021 attack and ignoring signs of the boy's mental despair. (AP Photo/Carlos Osorio, Pool)

James Crumbley, the father of a Michigan school shooter holds his emotions after watching a video of the killing of four students at Oxford H.S., Tuesday, March 12, 2024, in Pontiac, Mich. Crumbley is the father of Ethan Crumbley, who killed four students and wounded more at Oxford High School. Crumbley is charged with involuntary manslaughter for failing to safely store a handgun used by his son in the 2021 attack and ignoring signs of the boy's mental despair. (AP Photo/Carlos Osorio, Pool)

Businessman Luke Kirtley testifies during the trial for James Crumbley, Tuesday, March 12, 2024 in Pontiac, Mich. Crumbley is the father of Ethan Crumbley, who killed four students and wounded more at Oxford High School. Crumbley is charged with involuntary manslaughter. He's accused of failing to safely store a handgun used by his son in the 2021 attack and ignoring signs of the boy's mental despair. (AP Photo/Carlos Osorio, Pool)

James Crumbley, the father of a Michigan school shooter stands during his trial, Tuesday, March 12, 2024 in Pontiac, Mich. He's the father of Ethan Crumbley, who killed four students and wounded more at Oxford High School. Crumbley is charged with involuntary manslaughter. He's accused of failing to safely store a handgun used by his son in the 2021 attack and ignoring signs of the boy's mental despair. The trial is in its fourth day. Jennifer Crumbley was convicted of the same charges last month. (AP Photo/\Carlos Osorio, Pool)

David Hendrick testifies during the trial for James Crumbley, Tuesday, March 12, 2024 in Pontiac, Mich. Crumbley is the father of Ethan Crumbley, who killed four students and wounded more at Oxford High School. Crumbley is charged with involuntary manslaughter. He's accused of failing to safely store a handgun used by his son in the 2021 attack and ignoring signs of the boy's mental despair. (AP Photo/Carlos Osorio, Pool)

In a frame grab from video, Jams Crumbley is arrested in Detroit. Crumbley is the father of Ethan Crumbley, who killed four students and wounded more at Oxford High School. Crumbley is charged with involuntary manslaughter. He's accused of failing to safely store a handgun used by his son in the 2021 attack and ignoring signs of the boy's mental despair. (AP Photo/Carlos Osorio, Pool)

James Crumbley listens during testimony, Tuesday, March 12, 2024 in Pontiac, Mich. Crumbley is the father of Ethan Crumbley, who killed four students and wounded more at Oxford High School. Crumbley is charged with involuntary manslaughter. He's accused of failing to safely store a handgun used by his son in the 2021 attack and ignoring signs of the boy's mental despair. (AP Photo/Carlos Osorio, Pool)

Defense attorney Mariell Lehman prepares to whisper in the ear of James Crumbley, Tuesday, March 12, 2024 in Pontiac, Mich. Crumbley is the father of Ethan Crumbley, who killed four students and wounded more at Oxford High School. Crumbley is charged with involuntary manslaughter. He's accused of failing to safely store a handgun used by his son in the 2021 attack and ignoring signs of the boy's mental despair. (AP Photo/Carlos Osorio, Pool)

Officer David Metzke describes the battering ram used by the Detroit Police Swat team during the trial for James Crumbley, Tuesday, March 12, 2024 in Pontiac, Mich. Crumbley is the father of Ethan Crumbley, who killed four students and wounded more at Oxford High School. Crumbley is charged with involuntary manslaughter. He's accused of failing to safely store a handgun used by his son in the 2021 attack and ignoring signs of the boy's mental despair. (AP Photo/Carlos Osorio, Pool)

James Crumbley talks to defense attorney Mariell Lehman, Tuesday, March 12, 2024 in Pontiac, Mich. Crumbley is the father of Ethan Crumbley, who killed four students and wounded more at Oxford High School. Crumbley is charged with involuntary manslaughter. He's accused of failing to safely store a handgun used by his son in the 2021 attack and ignoring signs of the boy's mental despair. (AP Photo/Carlos Osorio, Pool)

Detective Adam Stoyek testifies during the trial for James Crumbley, the father of a Michigan school shooter continues, Tuesday, March 12, 2024 in Pontiac, Mich. Prosecutors are focusing on the morning of the tragedy at Oxford High School in 2021 when four students were killed later that day. Crumbley is charged with involuntary manslaughter for failing to prevent the killings. (AP Photo/Carlos Osorio, Pool)

James Crumbley, the father of a Michigan school shooter, sits in court, Tuesday, March 12, 2024 in Pontiac, Mich. Prosecutors are focusing on the morning of the tragedy at Oxford High School in 2021 when four students were killed later that day. Crumbley is charged with involuntary manslaughter for failing to prevent the killings. (AP Photo/Carlos Osorio, Pool)

Detective Adam Stoyek looks over photographs during testimony during the trial for James Crumbley, the father of a Michigan school shooter continues, Tuesday, March 12, 2024 in Pontiac, Mich. Prosecutors are focusing on the morning of the tragedy at Oxford High School in 2021 when four students were killed later that day. Crumbley is charged with involuntary manslaughter for failing to prevent the killings. (AP Photo/Carlos Osorio, Pool)

Targets are seen hanging in the bedroom of Ethan Crumbley during the trial for James Crumbley, the father of a Michigan school shooter, Tuesday, March 12, 2024 in Pontiac, Mich. Prosecutors are focusing on the morning of the tragedy at Oxford High School in 2021 when four students were killed later that day. Crumbley is charged with involuntary manslaughter for failing to prevent the killings. (AP Photo/Carlos Osorio, Pool)

In a frame grab from video, the empty gun case and ammunition box are seen on the bed of James and Jennifer Crumbley during the trial for James Crumbley, the father of a Michigan school shooter, Tuesday, March 12, 2024 in Pontiac, Mich. Prosecutors are focusing on the morning of the tragedy at Oxford High School in 2021 when four students were killed later that day. Crumbley is charged with involuntary manslaughter for failing to prevent the killings. (AP Photo/Carlos Osorio, Pool)

Defense attorney Mariell Lehman questions detective Adam Stoyek during the trial for James Crumbley, the father of a Michigan school shooter, Tuesday, March 12, 2024 in Pontiac, Mich. Prosecutors are focusing on the morning of the tragedy at Oxford High School in 2021 when four students were killed later that day. Crumbley is charged with involuntary manslaughter for failing to prevent the killings. (AP Photo/Carlos Osorio, Pool)

In a frame grab from video, video games of Ethan Crumbley are seen photographed in his bedroom during the trial for James Crumbley, the father of a Michigan school shooter, Tuesday, March 12, 2024 in Pontiac, Mich. Prosecutors are focusing on the morning of the tragedy at Oxford High School in 2021 when four students were killed later that day. Crumbley is charged with involuntary manslaughter for failing to prevent the killings. (AP Photo/Carlos Osorio, Pool)

James Crumbley, the father of a Michigan school shooter is escorted out of court during a break, Tuesday, March 12, 2024 in Pontiac, Mich. Prosecutors are focusing on the morning of the tragedy at Oxford High School in 2021 when four students were killed later that day. Crumbley is charged with involuntary manslaughter for failing to prevent the killings. (AP Photo/Carlos Osorio, Pool)

Oakland County Prosecutor Karen McDonald holds a gun, described as the murder weapon, during the James Crumbley trial, in the Oakland County Courtroom on March 11, 2024, in Pontiac, Michigan. (The Detroit News/Daniel Mears, Pool

Oakland County Prosecutor Karen McDonald takes the gun, described as the murder weapon, from Special Agent Brett Brandon during the James Crumbley trial, in the Oakland County Courtroom on March 11, 2024, in Pontiac, Michigan. (The Detroit News/Daniel Mears, Pool)

Former Oxford High School Dean of Students Nick Ejak on the stand during the James Crumbley trial for involuntary manslaughter, in Oakland County Courtroom on March 11, 2024, in Pontiac, Michigan. (The Detroit News/Daniel Mears, Pool)

James Crumbley, leaves the courtroom during a break in his trial for involuntary manslaughter at the Oakland County Courtroom on March 11, 2024, in Pontiac, Michigan. (The Detroit News/Daniel Mears, Pool)

Oakland County Judge Cheryl Matthews talks with attorneys for both sides during the James Crumbley trial, for involuntary manslaughter, in Oakland County Courtroom on March 11, 2024, in Pontiac, Michigan. (The Detroit News/Daniel Mears, Pool)

Oxford High School counselor Shawn Hopkins, with Oakland County Judge Cheryl Matthews lookin on, on the stand during the James Crumbley trial. for involuntary manslaughter, in Oakland County Courtroom on March 11, 2024, in Pontiac, Michigan. (The Detroit News/Daniel Mears, Pool)

James Crumbley, on trial for involuntary manslaughter, in the Oakland County Courtroom on March 11, 2024, in Pontiac, Michigan. (The Detroit News/Daniel Mears, Pool)

Attorney Mariell Lehman representing James Crumbley, father of Ethan Crumbley on trial for involuntary manslaughter, in the Oakland County Courtroom on March 11, 2024, in Pontiac, Michigan. (The Detroit News/Daniel Mears, Pool)

An email from Oxford High School teacher Allison Karpinski concerning Ethan Crumbley during the trial of James Crumbley, father of Ethan, for involuntary manslaughter, in the Oakland County Courtroom on March 11, 2024, in Pontiac, Michigan. (The Detroit News/Daniel Mears, Pool)

Oxford High School counselor Shawn Hopkins, with Oakland County Judge Cheryl Matthews lookin on, on the stand during the James Crumbley trial. for involuntary manslaughter, in Oakland County Courtroom on March 11, 2024, in Pontiac, Michigan. (The Detroit News/Daniel Mears, Pool)

James Crumbley, removes his tie before leaving the courtroom for a break, during his trial for involuntary manslaughter in connection with his son Ethan Crumbley, at the Oakland County Courtroom on March 11, 2024, in Pontiac, Michigan. (The Detroit News/Daniel Mears, Pool)

Oakland County Sheriff officers take the handcuffs and chains off James Crumbley, with attorney Mariell Lehman looking on, on trial for involuntary manslaughter, in the Oakland County Courtroom on March 11, 2024, in Pontiac, Michigan. (The Detroit News/Daniel Mears, Pool)

Oakland County Sheriff officers bring James Crumbley, on trial for involuntary manslaughter, into the Oakland County Courtroom on March 11, 2024, in Pontiac, Michigan. (The Detroit News/Daniel Mears, Pool)

Oxford High School counselor Shawn Hopkins on the stand during the James Crumbley trial. for involuntary manslaughter, in Oakland County Courtroom on March 11, 2024, in Pontiac, Michigan. (The Detroit News/Daniel Mears, Pool)

James Crumbley, on trial for involuntary manslaughter, talks with his attorney Mariell Lehmanis after court was dismissed for the day in Oakland County Court on March 11, 2024, in Pontiac, Michigan.

James Crumbley, on trial for involuntary manslaughter, is escorted out after court was dismissed for the day at Oakland County Court on March 11, 2024, in Pontiac, Michigan.

James Crumbley, on trial for involuntary manslaughter, is escorted into the Oakland County Courtroom on March 11, 2024, in Pontiac, Michigan.

Kristy Gibson-Marshall, assistant principal at Oxford H.S. testifies before Oakland County Prosecutor Karen McDonald in the Oakland County courtroom Friday, March 8, 2024, in Pontiac, Mich. James Crumbley is on trial for involuntary manslaughter. He's accused of contributing to the tragedy at Oxford High School by failing to properly secure a gun used by son Ethan Crumbley. Four students were killed and more were wounded. (AP Photo/Carlos Osorio, Pool)

In a frame grab from video, Investigators meet with James Crumbley, top center, and his wife Jennifer Crumbley after the Oxford H.S. school shooting in an interiewed displayed in the Oakland County courtroom Friday, March 8, 2024, in Pontiac, Mich. James Crumbley is on trial for involuntary manslaughter. He's accused of contributing to the tragedy at Oxford High School by failing to properly secure a gun used by son Ethan Crumbley. Four students were killed and more were wounded. (AP Photo/Carlos Osorio, Pool)

In a frame grab from video, James Crumbley, left, and his wife Jennifer Crumbley meet with their son Ethan Crumbley after the Oxford H.S. school shooting in an interiewed displayed in the Oakland County courtroom Friday, March 8, 2024, in Pontiac, Mich. James Crumbley is on trial for involuntary manslaughter. He's accused of contributing to the tragedy at Oxford High School by failing to properly secure a gun used by son Ethan Crumbley. Four students were killed and more were wounded. (AP Photo/Carlos Osorio, Pool)

In a frame grab from video, Ethan Crumbley is seen in an interview room after the Oxford H.S. school shooting in an interiewed displayed in the Oakland County courtroom Friday, March 8, 2024, in Pontiac, Mich. Ethan's father, James Crumbley, is on trial for involuntary manslaughter. He's accused of contributing to the tragedy at Oxford High School by failing to properly secure a gun used by son Ethan Crumbley. Four students were killed and more were wounded. (AP Photo/Carlos Osorio, Pool)

James Crumbley gets emotional after watching the video of his son walking through the halls of Oxford H.S. in a video shown in the Oakland County courtroom Friday, March 8, 2024, in Pontiac, Mich. Crumbley is on trial for involuntary manslaughter. He's accused of contributing to the tragedy at Oxford High School by failing to properly secure a gun used by son Ethan Crumbley. Four students were killed and more were wounded. (AP Photo/Carlos Osorio, Pool)

Defense attorney Mariell Lehman puts her arm on James Crumbley after he gets emotional after watching the video of his son walking through the halls of Oxford H.S. in a video shown in the Oakland County courtroom Friday, March 8, 2024, in Pontiac, Mich. Crumbley is on trial for involuntary manslaughter. He's accused of contributing to the tragedy at Oxford High School by failing to properly secure a gun used by son Ethan Crumbley. Four students were killed and more were wounded. (AP Photo/Carlos Osorio, Pool)

Kristy Gibson-Marshall, assistant principal at Oxford H.S. testifies before Oakland County Prosecutor Karen McDonald in the Oakland County courtroom Friday, March 8, 2024, in Pontiac, Mich. James Crumbley is on trial for involuntary manslaughter. He's accused of contributing to the tragedy at Oxford High School by failing to properly secure a gun used by son Ethan Crumbley. Four students were killed and more were wounded. (AP Photo/Carlos Osorio, Pool)

Nicole Beausoleil, mother of Oxford High shooting victim Madisyn Baldwin, wipes her nose as she hears Robert Koteles, Oakland County Sheriff's forensic lab and crime scene supervisor testify in the Oakland County courtroom during the trial for James Crumbley, Friday, March 8, 2024, in Pontiac, Mich. Crumbley is on trial for involuntary manslaughter. He's accused of contributing to the tragedy at Oxford High School by failing to properly secure a gun used by son Ethan Crumbley. Four students were killed and more were wounded. (AP Photo/Carlos Osorio, Pool)

James Crumbley is escorted out of the Oakland County courtroom Friday, March 8, 2024, in Pontiac, Mich. Crumbley is on trial for involuntary manslaughter. He's accused of contributing to the tragedy at Oxford High School by failing to properly secure a gun used by son Ethan Crumbley. Four students were killed and more were wounded. (AP Photo/Carlos Osorio, Pool)

Gun shop office manager Cammy Back testifies on the stand about the sale of a handgun to James Crumbley in the Oakland County courtroom Friday, March 8, 2024, in Pontiac, Mich. Crumbley is on trial for involuntary manslaughter. He's accused of contributing to the tragedy at Oxford High School by failing to properly secure a gun used by son Ethan Crumbley. Four students were killed and more were wounded. (AP Photo/Carlos Osorio, Pool)

Gun shop office manager Cammy Back looks over the gun case held by Oakland County Assistant Prosecutor Marc Keast, that was sold with a handgun to James Crumbley, in the Oakland County courtroom Friday, March 8, 2024, in Pontiac, Mich. Crumbley is on trial for involuntary manslaughter. He's accused of contributing to the tragedy at Oxford High School by failing to properly secure a gun used by son Ethan Crumbley. Four students were killed and more were wounded. (AP Photo/Carlos Osorio, Pool)

James Crumbley sits in the Oakland County courtroom Friday, March 8, 2024, in Pontiac, Mich. Crumbley is on trial for involuntary manslaughter. He's accused of contributing to the tragedy at Oxford High School by failing to properly secure a gun used by son Ethan Crumbley. Four students were killed and more were wounded. (AP Photo/Carlos Osorio, Pool)

James Crumbley enters the Oakland County courtroom Friday, March 8, 2024, in Pontiac, Mich. Crumbley is on trial for involuntary manslaughter. He's accused of contributing to the tragedy at Oxford High School by failing to properly secure a gun used by son Ethan Crumbley. Four students were killed and more were wounded. (AP Photo/\Carlos Osorio, Pool)

James Crumbley listens in the Oakland County courtroom during his trial, Friday, March 8, 2024, in Pontiac, Mich. Crumbley is on trial for involuntary manslaughter. He's accused of contributing to the tragedy at Oxford High School by failing to properly secure a gun used by son Ethan Crumbley. Four students were killed and more were wounded. (AP Photo/Carlos Osorio, Pool)

James Crumbley sits with defense attorney Mariell Lehman in the Oakland County courtroom Friday, March 8, 2024, in Pontiac, Mich. Crumbley is on trial for involuntary manslaughter. He's accused of contributing to the tragedy at Oxford High School by failing to properly secure a gun used by son Ethan Crumbley. Four students were killed and more were wounded. (AP Photo/Carlos Osorio, Pool)

James Crumbley talks to his defense attorney Mariell Lehman in the Oakland County courtroom Friday, March 8, 2024, in Pontiac, Mich. Crumbley is on trial for involuntary manslaughter. He's accused of contributing to the tragedy at Oxford High School by failing to properly secure a gun used by son Ethan Crumbley. Four students were killed and more were wounded. (AP Photo/\Carlos Osorio, Pool)

Robert Koteles, Oakland County Sheriff's forensic lab and crime scene supervisor looks over a document in the Oakland County courtroom Friday, March 8, 2024, in Pontiac, Mich. James Crumbley is on trial for involuntary manslaughter. He's accused of contributing to the tragedy at Oxford High School by failing to properly secure a gun used by son Ethan Crumbley. Four students were killed and more were wounded. (AP Photo/Carlos Osorio, Pool)

Oxford High School educator Molly Darnell shows the jury her gunshot wound during the trial of James Crumbley on Thursday, March. 7, 2024 in Pontiac, Mich.

James Crumbley becomes emotional during the testimony of Oxford High School educator Molly Darnell as he sits with his attorney Mariell Lehman on Thursday, March. 7, 2024 in Pontiac, Mich. James Crumbley, 47, is charged with four counts of involuntary manslaughter, one for each teenager killed by Ethan Crumbley at Oxford High School in 2021.

Security footage is shown to the jury of sheriff's deputies escorting Molly Darnell out of Oxford High school after she sustained a gunshot wound on Nov. 30, 2021 during the trial of James Crumbley on Thursday, March. 7, 2024 in Pontiac, Mich.

Oxford High School educator Molly Darnell becomes emotional during her testimony at the trial of James Crumbley on Thursday, March. 7, 2024 in Pontiac, Mich.

Forensic expert Edward Wagrowski becomes emotional as he testifies during James Crumbley's trial in the Oakland County courtroom of Cheryl Matthews on Thursday, March. 7, 2024 in Pontiac, Mich.

James Crumbley, left, stands with his attorney Mariell Lehman as Oakland County Judge Cheryl Matthews swears in the jury before Crumbley's trial on Thursday, March. 7, 2024 in Pontiac, Mich.

Assistant Oakland County Prosecutor Marc Keast makes opening statements, in the trial of James Crumbley in the Oakland County courtroom of Cheryl Matthews on Thursday, March. 7, 2024 in Pontiac, Mich. James Crumbley, 47, is charged with four counts of involuntary manslaughter, one for each teenager killed by Ethan Crumbley at Oxford High School in 2021.

Mariell Lehman, attorney for James Crumbley, makes opening statements in the Oakland County courtroom of Cheryl Matthews during his trial on Thursday, March. 7, 2024 in Pontiac, Mich.

Oakland County judge Cheryl Matthews, addresses the validity of some evidence before the James Crumbley's trial on Thursday, March. 7, 2024 in Pontiac, Mich.

James Crumbley enters the Oakland County courtroom of Cheryl Matthews before his trial on Thursday, March. 7, 2024 in Pontiac, Mich. James Crumbley, 47, is charged with four counts of involuntary manslaughter, one for each teenager killed by Ethan Crumbley at Oxford High School in 2021.

James Crumbley sits with his attorney Mariell Lehman in the Oakland County courtroom of Cheryl Matthews during his trial on Thursday, March. 7, 2024 in Pontiac, Mich. James Crumbley, 47, is charged with four counts of involuntary manslaughter, one for each teenager killed by Ethan Crumbley at Oxford High School in 2021.

Assistant Oakland County Prosecutor Marc Keast presents a photo to the jury of the math test sheet drawn on by Ethan Crumbley before he followed through with a deadly mass shooting at Oxford High School in 2021 during opening statements.

Assistant Oakland County Prosecutor Marc Keast presents a photo of the gun purchased by James Crumbley for his son, to the jury during opening statements of James Crumbley's trial in the Oakland County courtroom of Cheryl Matthews on Thursday, March. 7, 2024 in Pontiac, Mich.