Murder by Proxy: How America Went Postal

I watched this film in light of recent mass shootings. Though it mostly addresses the phenomenon of workplace shootings using historical reference to post office incidents, there is plenty of material that, in a broader view, pertains to the current horrors in Connecticut and NY. The film does not glorify criminal acts, but attempts a psycho-social (and at times economic) explanation, which in my mind succeeds. Deserves a higher rating than given by many, in my opinion. I wonder if the low ratings are due the societal explanations given for the motives of such despicable actions, or maybe the turnoff is in even trying to explain such horror at all.