This video should be treated like any other
This kid made a video, and thats all this is. How many thousands of videos have showed up on this site showing someone shooting other people. You don't see David Firth killing and having sex with dead bodies just because he puts it in his flash videos.
For once, people need to just accept that this kid was fucked up, and his art is not a sign that people could have used to predict his actions in the future.
Also, anyone who thinks video games inspire violence, maybe you should blame the bible too, that has alot of violence.