CENTENNIAL, Colo. – It was just hours after a deadly Colorado theater shooting, and James Holmes was not acting like a man accused of methodically planning the attack and booby trapping his apartment.

As a police detective interviewed the suspect they'd picked up outside the theater, he started pretending the paper bags on his hands – meant to preserve gunshot residue – were puppets.

The former neuroscience graduate student tried to jam a staple into an electrical outlet. He played with a cup on the table. At least two officers noted that his eyes were dilated.