What makes a person walk into a theater or church or classroom and open fire? What combination of circumstances compels a human being to commit the most inhuman of crimes? As the nation tries to comprehend the tragic events in Newtown, NOVA correspondent Miles O’Brien investigates theories into what drives rampage killers. Could suicide — and the desire to go out in a media-fueled blaze of glory — be their main motivation? How much can science tell us about a brain at risk for violence? Most important, can we recognize dangerous minds in time to stop the next Newtown? Nova: Mind of a Rampage Killer, Wednesday at 9 p.m. on PBS 6.

Nova: Mind of a Rampage Killer, Wednesday at 9 p.m. on PBS 6.

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