Information continues to roll in regarding a shooting at a theater showing “The Dark Knight Rises,” in Colorado.

The shooting occurred just after midnight Friday, when the suspect, who was dressed in a gas mask and black SWAT gear set off a gas canister, and then opened fire inside of a crowded theater in Aurora, Colorado, a suburb of Denver.

Authorities say that 12 people were killed and nearly 60 others were wounded in the rampage, according to the Associated Press.

The suspected gunman has been identified as 24-year-old James Holmes, who was a Ph.D. candidate in neuroscience at the University of Colorado-Denver, but was apparently about to drop out.

Holmes was arrested behind the theater, and authorities have not released a motive as of yet.

Police were forced to evacuate buildings near Holmes’ apartment, saying that “the third-floor apartment was booby trapped, so they’ve evacuated five surrounding buildings and bomb technicians were determining how to disarm flammable or explosive material,” according to the AP.

Rumors of the gunman having painted his hair red and calling himself "The Joker" have arisen, but Aurora police have not confirmed or denied them.

Theaters across the nation are still showing the film, but many theaters have increased security.