Miami, US (EFE).- A United States judge sentenced on Thursday Colin Gray, the father of the 14-year-old who killed four people at his Georgia school, to 15 years in prison for second-degree murder and involuntary manslaughter.

«It is clear you failed as a father,» Judge Nicholas Primm of the Barrow County Superior Court said during sentencing, referring to the father who had gifted his son, Colt Gray, the rifle used in the 2024 school shooting as a Christmas present.

«You did not provide a stable household. You did not have things in check with Marcee’s issues (refering to Colt’s mother) and what the kids were being exposed to. You did not have cult in activities that a boy should be in where he’s making connections with other children in person, where he feels loved, where he feels accepted,» the judge added.

However, the judge clarified that these reasons were not the direct cause of the conviction. Rather, it was the father’s failure to heed the «warning lights (that) were flashing brighter and brighter,» his failure to seek help for his son, and his failure to prevent his son’s access to weapons.

Colt killed four people and wounded nine others at Apalachee High School in Winder, using an AR-15 style semi-automatic rifle.