Sen. Jay Rockefeller (D-W.Va.) has introduced one of Congress’ first pieces of legislation related to the tragedy in Newtown, Conn.: a bill to study the impact of violent video games on children.
I disagree with this notion, as does the Entertainment Software Association. Though declining to comment now, they have always maintained that video games do not cause violent behaviour:
“The myth that video games cause violent behavior is undermined by scientific research and common sense,” said Michael Gallagher, president of ESA, in 2010. “According to FBI statistics, youth violence has declined in recent years as computer and video game popularity soared. We do not claim that the increased popularity of games caused the decline, but the evidence makes a mockery of the suggestion that video games cause violent behavior.”
That’s not to say I’m against the idea of a new study as long as it follows common guidelines for scientific research. If past studies  are any indication, this one will only provide further evidence falsifying the claim.