Here's a guide to some key questions in the wake of the mass shooting at a Colorado movie theater during a showing of "The Dark Knight Rises."
An Illinois man who placed 15 crosses near Columbine High School after the 1999 massacre there has returned to Colorado with 12 crosses for the victims of a theater shooting.
A California man who has known the suspect in the Colorado movie theater shooting for more than a decade says that in high school, he liked to play cards and video games.
The lone gunman keeps law enforcement officers across the country awake at night.
Colorado Gov. John Hickenlooper says the mass killing of a dozen people and wounding of another 58 at a movie theater may not have been political terrorism, but it was the act of a deranged, demonic person who wanted to create intense fear.
A 6-year-old video shows Colorado shooting suspect James Holmes as a thin teenager wearing an oversized shirt and occasionally breaking into a slight, shy smile.
The mayor of a Denver suburb that was the site of one of the worst mass shootings in U.S. history says some victims are still terribly injured and may not live.
Authorities are insisting that the suspected gunman in the Colorado theater shooting acted alone _ even as they interview people they believe may have associated with him.
A federal law enforcement official says the semi-automatic assault rifle used in the deadly Colorado movie theater shooting jammed during the attack.
Twelve people who died in the Colorado movie shooting have been identified by the Arapahoe County coroner:
Navy officials say one of the people killed in a Colorado movie theater shooting was a Navy veteran.
An overwhelming tragedy was distilled into one human moment by the agony of a father who outlived his son.
The University of Colorado-Denver released more information Saturday on the suspect in the Aurora movie theater shooting.
For the six friends, the movie was to be the kickoff to a day of celebration. Megan Saunders was turning 20, and her best buds were home from college for the summer. She had one particular birthday wish: that they all hit the midnight premiere of the new Batman flick, "The Dark Knight Rises."
The suspect in Friday's mass shooting at a suburban Denver movie theater has been appointed a defense attorney.
Details are coming out about how a bomb squad is taking apart the booby trapped apartment of the Colorado theater shooting suspect.
Midnight movies are supposed to be fun.
The FBI and Homeland Security Department have advised law-enforcement officials around the country they've uncovered no information to indicate that more shooting sprees were being plotted for movie theaters around the country.
James Holmes is accused of carrying out one of the worst mass shootings in recent U.S. history, but police say there was nothing illegal about the guns and ammunition he allegedly used during a Colorado movie theater attack.
Timeline for suspected Colorado theater gunman James Eagan Holmes: