maybe his saying that because of all the photos of the killer wearing a vest and brandishing 2 handguns and acting as if he was some character in a first person game like counterstrike?
again, there's just too many things fueling hatred and violence so why bother add to that?
btw. is it really true that the killer didn't really play games? i just find that hard to believe since "gaming" is like South Korea's NBA/UEFA/World Cup. if you were a great gamer in that country, you'll be more popular than pacman himself.