ORLANDO, Fla. – A college student with two guns, hundreds of rounds of ammunition and a backpack filled with explosives pulled a dorm fire alarm Monday in an apparent attempt to force other students out into the open so that he could slaughter them, authorities said. But he instead put a bullet in his head as police closed in.

James Oliver Seevakumaran, 30, was found dead in his dorm room at the 51,000-student Orlando campus of the University of Central Florida. No one else was hurt.

"His timeline got off," university Police Chief Richard Beary said. "We think the rapid response of law enforcement may have changed his ability to think quickly on his feet."