Colorado Theater Shooter Went From Happy Boy to Mass Killer

He flashed a toothy grin in his second grade photograph, but by the ninth grade the smile was gone, replaced with an awkward smirk and a wild look in his eye. James Holmes, now 27, was still "Jimmy" then, by most accounts a happy, mild-mannered kid, but he was morphing into an odd loner, so quiet and detached it was easy to forget he was there. A fuller portrait of the Colorado movie theater shooter has emerged during his death penalty trial. Yet more than 12 weeks of testimony — most recently about his unremarkable suburban childhood and college years — have made it even more difficult to comprehend his descent from a well-behaved child with a quirky sense of humor into a killer capable of gunning down defenseless strangers.