Editing Ethan Crumbley (section)

===The shooting===
Surveillance footage reportedly showed him entering a bathroom with a backpack and then exiting it about a minute later without the backpack but with the handgun. Immediately afterwards, prosecutors said Crumbley started firing at students; when they started fleeing, he "methodically and deliberately" walked down the hallway and aimed his gun into classrooms and at students who were unable to escape.

According to students, a voice over the intercom alerted them to an active shooter, and their teachers started locking and barricading doors and covering windows, convincing them it was not a drill. Others recounted hearing some loud banging noises, before realizing the noises were gunshots and quickly locking the door.

At 12:51 p.m., police began receiving the first of around one hundred 9-1-1 calls about the shooting and responded to the school. Crumbley was arrested unharmed by a deputy assigned as a school resource officer and a second deputy who responded to the scene. He allegedly still had seven rounds of ammunition loaded into his gun, a total of 18 rounds left, and two 15-round magazines when he was stopped by authorities.