The police chief in Aurora said investigators are building a case to show that the suspect in the Colorado theater shooting is a very intelligent person who methodically plotted the attack.
Chief Dan Oates told CBS' "Face the Nation" on Sunday police are focusing on how James Holmes allegedly got materials used in Friday's shooting. He said police will be going over items taken from his apartment over the next couple of days.
Oates said he had never seen a booby trap as elaborate as what was found in Holmes' apartment, noting that a second triggering mechanism was found.
Oates said the setup speaks volumes about Holmes' intelligence, deliberation and cold-bloodedness.
He said an FBI behaviorist is helping in the investigation.
Meanwhile, the AP reports a gun club owner rejected Holmes because of what he called a bizarre message and behavior.
The University of Colorado said it is investigating whether Holmes used his position as a graduate student to order materials in the potentially deadly booby traps that police say they found in his apartment.
Police said Holmes received deliveries over four months to his home and school. They haven't identified the contents.
University spokeswoman Jacque Montgomery said Sunday the school is looking into those packages received at the school.
Montgomery said Holmes had withdrawn from the university's Ph.D. neuroscience program without giving a reason.
Friend Says Suspect Didn't Study But Still Got A's
A California man who has known Holmes for more than a decade said that in high school, he liked to play cards and video games.
Ritchie Duong, 24, told the Los Angeles Times they also both attended undergraduate school at the University of California, Riverside, where they saw each other once a week to watch "Lost."
They last met in December for dinner and a movie. Duong said Holmes seemed fine.
Duong said academics came easily to Holmes both at high school and at the UC Riverside. Duong added that he remembers that in one college class they had together, Holmes didn't take notes but would just sit through class and always got an A.
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