The shooting’s father reportedly gifted him a gun after the FBI warned him


Colin was arrested shortly after 6 p.m. on Thursday and his mug shot was released by the Barrow County Sheriff’s Office later that night.
Colin told investigators earlier on Thursday that he purchased the gun allegedly used in the shooting as a Christmas gift for his son last December, two law enforcement sources told CNN.
The source added the AR-15-style rifle was purchased at a local gun store.
Georgia authorities told reporters the parent “knowingly” let his son possess a weapon.
