a second-floor window to look for explosives the suspect claimed were in the apartment. Hide Caption 38 of 45 Photos: Colorado movie theater massacre Screaming, panicked moviegoers scrambled to escape from the black-clad gunman, who wore a gas mask and randomly shot as he walked up the theater's steps, witnesses said. Hide Caption 39 of 45 Photos: Colorado movie theater massacre Onlookers gather outside the Century Aurora 16 theater. Hide Caption 40 of 45 Photos: Colorado movie theater massacre A woman sits on top of her car near the crime scene. Hide Caption 41 of 45 Photos: Colorado movie theater massacre Police block access to the Town Center mall after the shooting. Hide Caption 42 of 45 Photos: Colorado movie theater massacre Cell phone video taken by someoneat the theater showed scores of people screaming and fleeing the building. Some, like this man, had blood on their clothes. Hide Caption 43 of 45 Photos: Colorado movie theater massacre Witnesses told KUSA the gunman kicked in an emergency exit door and threw a smoke bomb into the darkened theater before opening fire. Hide Caption 44 of 45 Photos: Colorado movie theater massacre What is believed to be the suspect's car is examined after the shooting. Hide Caption 45 of 45

He was just 24 when he killed the people in the theater. And so, the life story told in court was largely that of a child and teenager.

Screens in the courtroom displayed Holmes' birth announcement -- a boy, 7 pounds, 5 ounces and 20 inches. He was