Colin Gray received a 15-year prison sentence Thursday, far below the 80 years prosecutors requested for the father of the Apalachee High School shooter. A Georgia jury convicted him in March of second-degree murder, involuntary manslaughter, cruelty to children and reckless conduct. All his prison terms will run concurrently, producing an aggregate sentence of 15 years.

Gray, 55, gave his son, Colt Gray, the semiautomatic rifle used in the Sept. 4, 2024, attack at Apalachee High School in Winder, Georgia. Students Mason Schermerhorn and Christian Angulo, both 14, and teachers Richard Aspinwall and Cristina Irimie were killed. Nine other people were injured.

The sentence arrived two days after the same judge sentenced Colt Gray to life in prison without parole. The teenager, now 16, pleaded guilty to all 55 charges stemming from the attack.

Judge Distinguished Negligence From Murderous Intent

Barrow County Superior Court Judge Nicholas Primm told Colin Gray that he had clearly failed as a parent. However, the judge said he also had to distinguish the father’s criminal negligence from the deliberate actions of his son.

Primm acknowledged the profound loss experienced by the victims and their families. He explained that sentencing required him to set aside emotion and consider what Gray intended, what he knew and what he failed to prevent.

Colin Gray did not plan the shooting or pull the trigger. Jurors instead found that his repeated failure to address warning signs, secure his weapons and obtain adequate help for his son contributed directly to the deaths.

That distinction helped produce a sentence much shorter than the 80 years requested by Barrow County District Attorney Brad Smith. Primm imposed 15-year terms for each second-degree murder conviction, along with shorter sentences on the remaining counts, but ordered the terms to run at the same time.

Prosecutors Said Warning Signs Kept Growing

Prosecutors argued that Gray’s conduct went beyond a single mistake. They said law enforcement questioned Colt in 2023 about online threats involving a possible school shooting and advised his father to restrict the teenager’s access to firearms.

Months later, Gray gave his son a SIG Sauer M400 rifle as a Christmas present. The gift reportedly included ammunition, a gun sight and other shooting accessories.

Evidence also showed that Colt’s mental health and behavior had deteriorated. Prosecutors said he had become fascinated with mass shooters and displayed material about the 2018 Marjory Stoneman Douglas High School shooter on his bedroom wall.

Colt’s mother, Marcee Gray, testified that she warned her estranged husband to secure the guns and prevent their son from accessing them. Prosecutors argued that Colin Gray ignored those warnings while continuing to keep firearms in the home.

Smith told the court that the danger had been “staring him in the face every day.” He argued that Gray gave his son the exact weapon needed to turn that danger into a mass shooting.

Defense Said Colt Concealed His Plans

Defense attorney Brian Hobbs asked Primm to impose 10 years in prison followed by 10 years of probation. He argued that Colt actively hid the full extent of his interest in mass shootings and never revealed his plan to attack the school.

Hobbs described Colin Gray as a struggling father who tried to connect with his son through hunting and shooting. The defense also said Gray was attempting to arrange mental health treatment for Colt shortly before the attack.

During his trial, Gray admitted that he could have done more. However, he maintained that he never imagined his son would commit a mass shooting and believed the rifle would only be used under established rules.

Gray did not address the court before his sentence. His attorneys advised him not to speak and announced that they intend to appeal his convictions.

Victims’ Families Called the Shooting Preventable

Relatives of those killed urged the judge to impose the maximum possible punishment. Their statements focused on the warnings Gray allegedly ignored and the permanent consequences of making the rifle accessible.

Breanna Schermerhorn, whose son Mason was killed, told the court that the shooting was preventable. She said four families had received “life sentences of grief” because of decisions made inside the Gray household.

Shayna Aspinwall, whose husband Richard was killed, emphasized that Gray purchased the firearm and left it accessible to a minor. Other relatives described the continuing trauma experienced by students, teachers and families nearly two years after the attack.

Primm acknowledged that the sentence would not end that suffering. He told those gathered in the courtroom that the ruling closed only the legal chapter of the tragedy, while the pain and loss would continue.

Case Expanded Parental Liability

The case followed the prosecutions of Jennifer and James Crumbley in Michigan. Their son, Ethan Crumbley, killed four students at Oxford High School in 2021 after his parents purchased him a gun and failed to remove him from school when staff discovered violent drawings.

Michigan juries convicted both parents of involuntary manslaughter. Each received a sentence of 10 to 15 years in prison, which Gray’s defense urged Primm to use as a guide.

Georgia prosecutors went further by using the state’s second-degree murder statute. The charge allowed them to argue that Gray caused the deaths of the two child victims by committing second-degree cruelty to children through criminal negligence.

That legal approach did not require prosecutors to prove that Gray intended for anyone to die. They instead had to convince jurors that he knew about a serious and unjustifiable risk, failed to act and enabled the conditions that made the shooting possible.

Appeal Could Test the Case’s Limits

Gray’s expected appeal could test how far Georgia may extend its cruelty-to-children and second-degree murder laws when a parent does not participate in a child’s violent act. The case could also influence how prosecutors in other states evaluate parental responsibility after school shootings.

The verdict does not make parents automatically responsible for crimes committed by their children. Gray’s prosecution depended on evidence involving the firearm, prior warnings, Colt’s behavior and the father’s alleged failure to restrict access.

The 15-year sentence reflects the difficult legal boundary at the center of the case. Primm rejected the argument that Gray’s failures deserved only limited punishment, but he also rejected the prosecution’s request to keep him imprisoned for most or all of his remaining life.

Colt Gray will spend the rest of his life in prison for carrying out the shooting. His father will spend 15 years there for helping create the conditions that allowed it to happen.