I’m not sure where that graph comes from, but if I had time to make one of my own, it would clearly show that the incidents of kids going into a school and shooting the place up DOES begin with the advent of violent video games (1990+). And every shooter since then HAS been shown to have spent many hours playing them. You might also want to read the response to my post by the Army vet for further proof.
I don’t believe that violent video games CAUSE the people to go into a school and kill their classmates. Violent video games DO help to break down the inhibition to start shooting when the urge occurs.
The graph is from official US Department of Justice statistics.
So if violent video games cause violent crime, why would it uniquely be the (still extremely rare) case of kids going into a school conducting a mass shooting, but has NO effect, and possibly reduces, kids just murdering anyone anywhere?
(Or committing any violent act - the rate of violent crimes has dropped drastically as well.)
And keep in mind, the current rate of violent video game playing by 10-17 year old males approaches 100% - pretty much almost ALL of them play them a lot - yet the 10-17 male murder and violent crime rate drops?
The other serious problem your silly theory has is that countries like South Korea actually HIGHER rates and time played of violent video games, but tiny muder rates, and essentially no kids going into schools shooting them up.
Correlation != Causation.
I suspect a better one to graph would be the mind-altering (Prozac/etc.) drugs and behavior/shooting. I’d bet dollars to doughnuts there’s a strong link there instead of anyplace else.