The suspect in Wednesdays school shooting in Winder, Georgia, left his math class before the attack and apparently tried to reenter the room with a gun, but a classmate stopped him by not opening the door, a student has said.

Junior Lyela Sayarath told CNN that the suspect, 14-year-old Colt Gray, had been sitting next to her at the start of the class at Apalachee High School but that Gray, who she said often skipped class, got up and left.

The period was nearly finished when he returned, she said, knocking at the door to be let back in because the doors lock automatically after theyre closed.