Tuskegee University student Sid Guynn hid under a car when he heard the gunshots that ripped across his Alabama campus amid homecoming celebrations, then ran back to his dorm, frightened by what sounded to him like a machine gun.

Authorities said Montgomery resident Jaquez Myrick, 25, was seen leaving the scene of the shooting. Myrick was allegedly found in possession of a handgun with a machine gun conversion device and was arrested Sunday on a federal charge of possession of a machine gun, an Alabama Law Enforcement Agency spokesman said.