Columbine, Aurora, Oregon, Newtown – communities victimized by troubled young men going on shooting rampages in public places. How can we recognize potential killers before they can do harm? Are you worried that your kid's behavior could become dangerous? Dr. Drew and his guests discuss how to stop the carnage before it starts.
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Dr. Drew On Call airs Monday through Wednesday on HLN at 9 p.m. ET. Follow the show on Facebook and Twitter @DrDrewHLN