I'm so profoundly relieved to at least hear some sense coming out of a court of law. Those two guys were horrifically disturbed, and if you want to point a finger at any contributory cause, it might be upon the institutionalised brutality that passes for a highschool education.
Frankly games are what probably stopped them going "pop" earlier as it has been proved that RPG's and Computer Games provide a cathartic release valve for anti-social behaviour.
Nut jobs are nut jobs, no matter WHAT media they've been exposed to, inspirational media merely shapes the form of their acting out, rather than converting two choir boys into hells angels. The question that needs to be asked here is not WHY the guy named his gun Arlene, but why he was allowed to own such devices of pain and death in the first place. Personally I don't see a need for firearms in civilian hands, but then I'm a product of my environment - just as they were...