Authorities say a University of Central Florida student who pulled a dorm fire alarm in the middle of the night had a more sinister plan than sending students scurrying out into the night.

Campus police said Monday that 30-year-old James Oliver Seevakumaran was armed with two guns, hundreds of rounds of ammunition, a backpack filled with explosives and a plan to attack other students as they fled the seven-story dorm where he lived.

His plans were thrown off by campus police officers’ quick response to the fire alarm and a 911 call from Seevakumaran’s roommate who had holed himself in a bathroom after Seevakumaran pointed a gun at him.

Police officers found Seevakumaran dead with a self-inflicted gunshot wound in his dorm room. No other students were hurt.