Investigators say teen smuggled assault rifle into Georgia school in backpack before shooting

A medical helicopter is seen in front of Apalachee High School after a shooting at the school Wednesday, Sept. 4, 2024, in Winder, Ga. (AP Photo/Mike Stewart)

The student accused of killing four people in a Georgia high school shooting rode the school bus that morning with a semiautomatic assault rifle concealed in his backpack, investigators confirmed Thursday.

Colt Gray then left his second-period classroom after getting permission to go to the front office at Apalachee High School but hid from teachers in a bathroom before emerging to begin the assault, according to the Georgia Bureau of Investigation and Barrow County Sheriff Jud Smith.

The new details fill in some key questions about how the 14-year-old got a gun that could not be folded down to the school in Winder, northeast of Atlanta, before a shooting that killed two students and two teachers. Another teacher and eight other students were injured.