ORLANDO, Fla. (AP) — A former college student who plotted an attack at the University of Central Florida left little impression on his classmates before his suicide led to the discovery of his weapons and his plans.

One of his dorm mates said he recalled friendly but distant interactions with James Oliver Seevakumaran, while several others approached by a reporter said they didn’t recall seeing or interacting with him.

A roommate interviewed by a campus media outlet said Seevakumaran was an introvert who never had visitors. Arabo “BK” Babakhani, who identified himself as the roommate who called 911 on Seevakumaran, told student publication Knightly News that he slammed the door on his roommate after the gun was pointed at him.

A statement from Seevakumaran’s family also said he was a loner who didn’t have a history of violence.

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