A University of South Alabama campus police officer was carrying not just his gun but also pepper spray and a baton the night he shot and killed an unarmed freshman student, the school said Friday.

University spokesman Keith Ayers said officer Trevis Austin, a four-year veteran of the department in his first police job, was armed with all three weapons when he walked outside the police station with his gun drawn to confront Gil Collar. Collar, 18, was naked when he banged on police department windows in the pre-dawn hours last Saturday.

Authorities said Collar, a 5-foot-7, 140-pound high school wrestler in his first semester of college, was on LSD when he moved aggressively toward the officer in an athletic stance to prompt the shooting.