A Georgia judge has sentenced Colin Gray to 15 years in prison after a jury found him criminally responsible for actions that contributed to the 2024 shooting at Apalachee High School, where his teenage son killed two students and two teachers.

The sentencing comes days after Colt Gray was sentenced to life in prison without the possibility of parole after pleading guilty to murder and other charges arising from the September 4, 2024, attack.

The case is among a small but growing number in the United States in which a parent has been held criminally liable in connection with a mass shooting carried out by their child.

The Sentencing

Judge Nicholas Primm sentenced Colin Gray to 15 years in prison on Thursday following his conviction earlier this year.

During the sentencing, Primm said the court’s responsibility was to apply the law impartially despite the emotional impact of the case.

Addressing Gray, the judge stated that he had failed in his responsibilities as a parent but emphasized that sentencing must be based on the law and the evidence presented at trial rather than emotion.

The judge also acknowledged the continuing pain experienced by victims and their families, noting that the conclusion of the criminal case could not erase their loss.

What Was Colin Gray Convicted Of?

A Georgia jury found Colin Gray guilty of:

• Two counts of second-degree murder in the deaths of students Mason Schermerhorn and Christian Angulo.
• Two counts of involuntary manslaughter in the deaths of teachers Richard Aspinwall and Cristina Irimie.

Under Georgia law, the second-degree murder convictions were based on the offense of second-degree cruelty to children that resulted in the deaths of minors.

The prosecution argued that Gray’s conduct contributed to the circumstances that allowed the attack to occur.

The School Shooting

The shooting occurred on September 4, 2024, at Apalachee High School, northeast of Atlanta.

According to prosecutors:

• Two students were killed.
• Two teachers were killed.
• One teacher and eight students were injured.

Authorities said Colt Gray, who was 14 years old at the time, carried a semiautomatic rifle into the school before opening fire.

He later pleaded guilty to murder and related charges and was sentenced to life imprisonment without the possibility of parole.

Prosecutors’ Case

Prosecutors argued that Colin Gray:

• Purchased the rifle that was later used in the attack.
• Allowed his son continued access to firearms.
• Failed to respond adequately to warning signs regarding his son’s mental health and behavior.

Evidence presented during the trial included testimony that Colt Gray had exhibited deteriorating mental health and participated in online communities focused on mass shootings.

Prosecutors also presented testimony that the teenager’s mother had previously urged Colin Gray to secure firearms and limit their son’s access to them.

The prosecution sought an 80-year prison sentence.

Defense Arguments

Defense attorney Brian Hobbs requested a sentence of 10 years in prison followed by 10 years of probation.

The defense argued that Colt Gray concealed the full extent of his online activity and that many of the warning signs identified by prosecutors became apparent only in hindsight.

The defense also contended that the father did not know his son intended to carry out the attack.

Victim Impact Statements

Family members of those killed addressed the court before sentencing.

Several relatives argued that the shooting was preventable and urged the judge to impose the maximum available sentence.

They emphasized the lasting emotional impact of the attack and argued that parents have a responsibility to secure firearms and respond to serious warning signs involving their children.

A Rare but Growing Legal Trend

Colin Gray’s case is among a small number of prosecutions in which U.S. parents have been held criminally responsible for actions connected to school shootings committed by their children.

The most widely known precedent involved Jennifer and James Crumbley, the Michigan parents convicted of involuntary manslaughter following the 2021 Oxford High School shooting.

Those cases have prompted broader legal and public debate over when a parent’s actions—or failure to act—may amount to criminal negligence under state law.

Each prosecution depends on the specific facts of the case and the applicable state statutes.

Why This Matters

The case highlights increasing scrutiny of firearm access, parental responsibility, and mental health intervention in preventing youth violence.

While school shooters themselves remain primarily responsible for their crimes, prosecutors in several recent cases have argued that parents who ignore serious warning signs or provide children with access to firearms may also face criminal liability under certain circumstances.

Legal experts expect these cases to continue shaping discussions about negligence, gun safety, and accountability.

The Bottom Line

Colin Gray has been sentenced to 15 years in prison after a Georgia jury found him criminally responsible for conduct that contributed to the 2024 Apalachee High School shooting carried out by his son, Colt Gray. The case is one of a growing number in which U.S. prosecutors have successfully pursued criminal charges against parents whose actions were found to have played a significant role in enabling a mass shooting.

TL;DR

• Colin Gray was sentenced to 15 years in prison by a Georgia court.
• Prosecutors argued he provided the rifle used in the Apalachee High School shooting and failed to respond to warning signs.
• His son, Colt Gray, previously pleaded guilty and was sentenced to life without parole.
• Four people were killed in the September 2024 attack, and several others were injured.
• The case adds to a small number of U.S. prosecutions holding parents criminally responsible for a child’s mass shooting.