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I know that every time there's a "mass" shooting it's oh this video game and that video game, then it's swept under the rug. What's often not mention is how many people get killed on the big screen; these how it play in the mind in some of these cacs. I do believe some hopeless people fall for illusions do to not have anything to look forward to, so when the tv,radio, and computer is off their "reality" is still there. It's good to point out the problems, but seems pointless without giving solutions.
the solution is to stop consuming the media. it's very simple.
stop playing the violent games, stop listening to destructive music, and consuming violent or destructive media.