Mass killer's profile emerges

Federal agents are probing the home and background of James Holmes, the suspect in a mass killing at an Aurora, Colorado showing of the film, "The Dark Knight Rises" that left 12 dead and 58 injured at press time. It is the worst mass-shooting of its kind in the United States.

Holmes, 28, had recently withdrawn from the graduate program in neuroscience at the University of Colorado at Denver. His "Monster.com" resume listed him as an "aspiring scientist." Homes had bought over 6,000 rounds of ammunition legally over the Internet.

He also bought a military-style semi-automatic rifle, a shot gun, a pistol, and urban assault vest and two magazine holders.

None of these purchases were illegal.

When authorities investigated the suspect's apartment, they found the residence had been rigged to become an incendiary nightmare upon opening the front door. The apartment had been wired with dozens of explosives set to go off when a wire was tripped at the entrance. Officials disarmed the devices and are currently sourcing the ammunition and supplies Holmes used.

Holmes is currently being held in solitary confinement and authorities say he is not talking.

ABC News reports that the owner of a Colorado gun club recently turned Holmes down for membership because he "seemed creepy."

Around the world, theaters cancelled premieres of the film "The Dark Knight Rises" which was running when Holmes allegedly entered and began shooting.

Star of the film, Christian Bale, put out a statement which said: "Words cannot express the horror that I feel. I cannot begin to truly understand the pain and grief of the victims and their loved ones, but my heart goes out to them."

The film's distributor, Warner Bros. was joined by all the major Hollywood studios in a black out on weekend box office numbers.