These horrific games where points are given for burning, shooting and killing, where the graphics are so realistic you believe that they're real scenes of carnage, where those who play fantasise they have the power of life and death, are so brutal they completely desensitise anyone taking part.
Research shows that within 15 minutes of playing one of these games young men become highly aggressive and lack empathy in normal situations. It is not too fanciful to suggest it's a short step from being immersed in this war-like world to taking that nightmare mindset on to the streets with all the consequences of anarchy and violence we saw rip apart cities.
I saw the 'study' that gave her the impression that video games incite violence in young men after 15 minutes of exposure (it was on television and had her observing it) and it was riddled with issues in it's methodology and how it's conclusion was formed (a bunch of kids not rushing to help you pick up pencils that you intentionally knocked over doesn't mean that they are highly aggressive or lack human empathy).
My own psychological study found that if there was any physiological effect, which was present regardless of what form of media my participants viewed, violent or non-violent (heart rate and blood pressure increased regardless of what type of media I exposed them to), was only temporary (you're probably gonna be more aggressive after stubbing your toe or getting into an arguement but that doesn't mean you'll forever be a burning ball of pure rage because of that box you didn't see on the stairs).
Videogames can incite some (often already mentally unstable) people to violence (all things can, just look at Twilight fangirls and PeTA fanatics, romance novels and pets have turned otherwise 'normal people' into highly hostile and irrational people) but the chances of it doing so are very slim, given how much videogames are now part of our culture shouldn't we see a horrific increase in violence and aggression amongst everyone involved insted of the almost universal decline in crime that we've seen?
Videogames are a very easy and obvious target but this doesn't mean they're the true cause of our problems today, the sooner we get past trying to find something to point fingers at the faster we'll find the actual cause of societal ills and incidents such as the recent riots and hopefully prevent such things from occuring again.