Batman Colorado shooting: Barack Obama to meet victims' families Authorities revealed the names of the 12 people who died in Friday's shootings, including a six-year-old girl whose mother was also injured, and two US servicemen. A further 58 people were wounded. Bomb experts spent Saturday inching their way into Holmes's apartment. A small boom from a controlled detonation was heard outside the apartment block and pieces of debris were blown out of one of the windows. Aurora police chief Dan Oates did nothing to hide his anger at what was found inside the apartment. He said: "Make no mistake, this apartment was designed to kill whoever entered it. And who was most likely to enter that location after he planned and executed this horrific crime? It was going to be a police officer. And if you think we're angry, we sure as hell are angry, about what has happened to our city. Officers began covering the windows of the apartment with black plastic to prevent onlookers from seeing in. Before they did, a poster was visible on a closet that advertised a DVD called "Soldiers of Misfortune." The 12 fatalities included six-year-old Veronica Moser-Sullivan. "She was beautiful and innocent," the girl's great-aunt Annie Dalton said. Her mother Ashley, 25, was shot in the neck and abdomen and is in critical condition. Police said Holmes planned the attack over four months. He bought more than 6,000 rounds of ammunition online, as well as four guns in the two months before the rampage. Chief Oates said: "What we're seeing here is evidence of, I think, some calculation and deliberation." Holmes, 24, is being held in solitary confinement for his own protection. He is due to appear in court on Monday.