A grand jury handed up charges against Colt Gray, 14, who is accused of killing four people at his high school. His father, Colin Gray, is accused of giving him access to the murder weapon.

Colt Gray and his father Colin Gray were indicted on dozens of charges in connection to last month’s deadly shooting at Apalachee High School in Georgia.

A 14-year-old boy and his father charged in the deadly shooting at a Georgia high school last month were formally indicted by a grand jury Thursday on dozens of additional charges, a day after investigators revealed new troubling details about the attack.