Great Article Daz (I think I missed this first time round).
I must agree in that studies have shown that if you're predisposed to mental illness/psychiatric conditions, then playing a game as a role fulfilment fantasy may well contribute (at least in a minor way) to your actions.
However, if you're a "normal" person then nothing will happen......you're normal and no amount of video gaming or movie watching will "make" you go out and hit people around the head with a hammer.
You have to be
predisposed to it in the first place in which case it's not the game causing it is it?
.