AURORA, CO (KUSA) -- The suspect - allegedly responsible for a mass shooting that killed 12 people and injured 59 more - was taken into custody near a car behind the movie theater and was identified by federal law enforcement officials as 24-year-old James Holmes.
Holmes was studying neuroscience in a Ph.D. program at the University of Colorado-Denver, university spokeswoman Jacque Montgomery said. Holmes enrolled a year ago and was in the process of withdrawing at the time of the shootings, Montgomery said.
Authorities gave no motive for the attack. The FBI said there was no indication of ties to any terrorist groups.
Holmes had an assault rifle, a shotgun and two pistols, a federal law enforcement official said, speaking on the condition of anonymity because the investigation was still unfolding.
FBI agents and police used a hook and ladder fire truck to reach Holmes' apartment in Aurora, police Chief Dan Oates said. They put a camera at the end of a 12-foot pole inside the apartment and discovered the unit was booby-trapped. Authorities evacuated five buildings as they tried to figure how to disarm the flammable and explosive material.
"[The suspect] lives on the third floor in the back," Oates said. "We have a whole bunch of bomb techs from a whole bunch of agencies. WE have pictures inside the location. We are trying to determine how to disarm flammable or explosive material that's in there. We could be here for hours. We could be here for days trying to get in there and get whatever evidence there is. The pictures are pretty disturbing. It looks pretty sophisticated in terms of how it's booby-trapped."
Police evacuated the building and surrounding buildings as a precaution. KUSA also reports that Anschutz Campus Research Buildings 1 & 2 have also been evacuated because that is where Holmes worked.
"This could be a very long wait," Oates said. "We don't know how long we are going to be here."