(ORLANDO, Fla.) -- The University of Central Florida student who planned to massacre his fellow students had ordered more than $700 worth of weapons online, including two packages of ammunition, gun shooting DVDs, and accessories for his weapons that arrived on campus after the attack had already been thwarted.
The packages contained even more ammunition for the attack that former UCF student James Oliver Seevakumaran, 30, planned to carry out Monday morning shortly after midnight.
He already had a handgun, assault rifle, high capacity magazines, and four homemade bombs he hoped to use on fellow students after pulling the fire alarm and forcing them into the crowded hallways, according to police.
University Police Chief Richard Beary said on Tuesday that Seevakumaran had written out a detailed list of the actions he hoped to take Monday night and crossed off the items as he went, including getting drunk at a bar called Mad Hatters and pulling the fire alarm. Police confirmed that he did both.
The last item on the list was "give 'em hell," but Seevakumaran killed himself before killing any fellow students, Beary said.
According to cops, the former business student pulled the fire alarm shortly after midnight, causing campus police to respond to the Tower 1 residence hall. He then returned to his apartment, where he pointed a rifle at roommate Arabo Babakhani.
Babakhani quickly hid in the bathroom and called 911 before Seevakumaran had a chance to shoot.
"As soon as the fire alarm happened, I open my door, I think something is burning on the stove. I open my door and I see my roommate with an assault rifle. I didn't stop and look, I slam the door in his face so he couldn't harm me. As soon as I open the door he just raised the rifle on me," Babakhani told ABC News.
"I thought he went after my roommate but I didn't hear a struggle. Then I heard pops and then silence," he said.
University police responded to the apartment and, in a dramatic video shown at a press conference on Tuesday, spent tedious moments trying to find the right key to enter Seevakumaran's room while the fire alarm sounded around them. Upon entering, they found Seevakumaran dead from a self-inflicted gunshot wound to the head.
Officers quickly backed out of the room where Seevakumaran's body was. Police said that he had four homemade IEDs that were laced with shrapnel in a backpack in his room, in addition to the guns and hundreds of rounds of ammunition.
The suspect had a American Tactical .22 caliber assault rifle and a High Point .45 caliber handgun and high capacity magazines, including a drum magazine similar to the type used in the movie theater shooting in Aurora, Colo.
Police discovered on Tuesday that Seevakumaran had two additional packages that he never picked up at the campus post office that included a sling for his rifle, a magazine, and DVDs on shooting and using lasers with weapons.
Beary said that the suspect spent at least $700 on the weapons and ammunition for the attack.
Seevakumaran had purchased his guns online and picked them up at a local Orlando federal firearms dealer, according to Beary.
Police said they were still investigating the incident but that there was no discernible motive for the planned attack.
Copyright 2013 ABC News Radio