The chilling video shows Apalachee High School students fleeing through a hallway from a classroom where a young gunman had allegedly opened fire, killing four people, his assault rifle still resting on the tile floor.
The black AR-15-style rifle, allegedly used by 14-year-old Colt Gray, was found in a creepy hallway with a magazine still loaded and a second magazine next to it.
Nearby lies a body covered in a white sheet.
The exact make of the gun is still unknown, but authorities confirmed that an AR-type weapon was used in Wednesday morning's shooting.
An unmodified, magazine-fed, gas-operated, semi-automatic AR-15 fires at a rate of 45 rounds per minute. According to the manufacturer's website.
According to the Georgia Bureau of Investigation, Colt Gray turned himself in to officers at the scene and was taken into custody.
