AURORA, Colo. (AP) -- Authorities on Saturday began disarming trip wires and explosive devices "set up to kill" inside the apartment of the suspect in the deadly Colorado movie theater shooting, hoping to find clues to his motive without destroying key evidence in a blast.
Federal authorities detonated one small explosive and disarmed another inside James Holmes' suburban Denver apartment, including one that emits a shock wave and water, a law enforcement official told The Associated Press. The official spoke on condition of anonymity, citing the ongoing investigation into the shooting rampage that killed 12 people and wounded 58.
Who is James Eagen Holmes?
Holmes' apartment appears to have three types of explosives -- jars filled with accelerants, chemicals that would explode when mixed together and more than 30 "improvised grenades," the official said.
Makeshift memorials sprang up for the victims, including a 6-year-old girl, an aspiring sportscaster and a man celebrating his 27th birthday, after police grimly went door to door with a list of those killed in the worst mass shooting in recent U.S. history. Holmes, 24, was arrested early Friday outside the Aurora theater after witnesses say he unleashed gunfire and gas canisters on a crowd of moviegoers watching the midnight showing of the new Batman film, "The Dark Knight Rises."
The devices in Holmes' booby-trapped apartment were "set up to kill that person and that could have been a police officer executing a search warrant," Aurora police Sgt. Cassidee Carlson said. Police planned an intricate procedure to disarm the possible weapons without destroying evidence that could be in the apartment.
"We don't want to lose evidential value," Carlson said.
Federal officials said in a bulletin obtained by The Associated Press that they still hadn't determined a motive for the suspect as families grieved and others waited at hospitals, where seven of the wounded remained in critical condition on Saturday.
In his Saturday radio address, President Barack Obama urged Americans to pray "for the victims of this terrible tragedy, for the people who knew them and loved them, for those who are still struggling to recover."
The victims included 23-year-old Micayla Medek, said Anita Busch, the cousin of Medek's father. The family took the news hard, but knowing her fate after waiting without word brought them some peace, Busch said.
"I hope this evil act, that this evil man doesn't shake people's faith in God," she said.
Besides Medek, relatives confirmed that Alex Sullivan and Jessica Ghawi were among those killed, Sullivan on his 27th birthday.
Aurora Police Chief Dan Oates said Holmes used a military-style semi-automatic rifle, a shotgun and a pistol to open fire on the unsuspecting theater-goers. He had bought the weapons at local gun stores within the last two months. He also recently purchased 6,000 rounds of ammunition over the Internet, the chief said.
The suspect's stellar academic record, apparent shy demeanor and lack of a criminal background made the attack even more difficult to fathom.
It also wasn't known why the suspect chose a movie theater to stage the assault, or whether he intended some twisted, symbolic link to the film's violent scenes.
The Batman movie, the last in the trilogy starring Christian Bale, opened worldwide Friday with midnight showings in the U.S. The plot has the villain Bane facing Bale's Caped Crusader with a nuclear weapon that could destroy all of fictional Gotham.
The Dark Knight Rises" earned $30.6 million in Friday morning midnight screenings, and, according to industry estimates, roughly $75-77 million on the day. That put it on track for a weekend total of around $165 million, which would be the second highest opening weekend ever, following "The Avengers."
Warner Bros. has announced it would forgo the usual revenue reports until Monday out of respect for the victims. Sony, Disney and Universal also said they would delay reporting box office receipts until Monday, a day later than the routine Sunday releases for Hollywood.
In New York City, Police Commissioner Raymond Kelly said: "It clearly looks like a deranged individual. He has his hair painted red. He said he was the Joker, obviously the enemy of Batman."
Oates would not confirm that information, but did say he spoke to Kelly. Asked whether Holmes had makeup to look like the Joker, Oates said: "That to my knowledge is not true."
Near the entrance to the theater's parking lot, a makeshift memorial of 12 candles sat in a row alongside piles of flowers. Up the hill from the theater, about 20 pastors led a vigil for 350 people, some hugging and crying. A sign read, "7/20. Gone Not Forgotten."
An emotional Gov. John Hickenlooper said earlier Friday that people would not be defined by the tragedy.
"We are clear that we are going to rise back and lift ourselves above this," he said.
A federal law enforcement official said Holmes bought a ticket to the movie,









