Colo. gunman's rampage stuns, saddens nation

Firefighters and police gather after an explosion could be heard outside the apartment of James Holmes in Aurora, Colo., Saturday, July 21, 2012. Federal authorities detonated one small explosive and disarmed another inside Holmes' apartment, but several other explosive devices remained, said Aurora police Sgt. Cassidee Carlson. Twelve people were killed and dozens were injured in a shooting attack early Friday at a packed movie theater during a showing of the Batman movie, "The Dark Knight Rises." Police have identified Holmes, 24, as the suspected shooter. (AP Photo/Ed Andrieski)

Firefighters and police gather after an explosion could be heard outside the apartment of James Holmes in Aurora, Colo., Saturday, July 21, 2012. Federal authorities detonated one small explosive and disarmed another inside Holmes' apartment, but several other explosive devices remained, said Aurora police Sgt. Cassidee Carlson. Twelve people were killed and dozens were injured in a shooting attack early Friday at a packed movie theater during a showing of the Batman movie, "The Dark Knight Rises." Police have identified Holmes, 24, as the suspected shooter. (AP Photo/Ed Andrieski)

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