As I understand it. Young Master Hog ran into a closet or classroom during the shooting and hid. When he came out of the closet at school...he was cleared and sent home. He then grabbed his video camera and hi-tailed it back to school on his bicycle at dangerously high speeds. He bravely hung around the police perimeter filming until he was noticed by a reporter. Maybe one who knew him from his mother's work at CNN.
Triangle-face Piglet Hogwash was hiding in a closet....in another building on campus. The shooting took place in the freshmen building.