Billy Kromka, a pre-med student at the University of Colorado, Boulder, worked with Mr. Holmes for three months last summer as a research assistant in a lab of at the Anschutz Medical Campus. Mr. Kromka said he was surprised to learn Mr. Holmes was the shooting suspect. "It was just shocking, because there was no way I thought he could have the capacity to do commit an atrocity like this," he said
"He said pictures from inside the apartment are fairly disturbing and the devices look to be sophisticated, adding the booby-traps were 'something I've never seen.' One rifle, two handguns, a knife, a bullet proof vest, a ballistic helmet, a gas device, a gas mask, military SWAT clothing and unidentified explosives were also found in Holmes' car, a law enforcement source told CBS News. Oates said Holmes wore a gas mask, a ballistic helmet and vest as well as leg, groin and throat protectors during the shooting."
Yahoo News: