"Studies on the impact of gaming violence offer conflicting evidence. But science aside, public rhetoric has clearly shifted since the shootings, with politicians and even the National Rifle Association — normally a fan of shooting games — quick to blame video games and Hollywood movies for inuring children to violence."
To the article's credit, they do give a perfunctory summary of the research at the end (about what can be expected of a 2-pager). And the above statement is accurate: the public rhetoric has shifted, even if it shouldn't have.
I hope the NYTimes can do a full review of this literature for the public good. This is an area ripe for a Science Times exploration!