Well first of all, it's not that computer games make people go kill someone and be violent in general, that should be obvious to any sane person. It's the way you are that makes you do things you do (which not only depends on the way your parents treat you, but a whole lot of other things. Good, caring parents is not something that should work 100% in all cases). If you're an angry, psychotic person you will choose to play Doom over Tetris. That doesn't mean however, that Doom (or any other violent game) caused it because this is not about computer games and this is not about violent movies. Everyone just seems to pin-point a right reason for all the violence and/or whatever it is they want to prove, searching for reasons, coming up with their "truth", when really things are more complex than that, you cannot just ignore all the rest of things that obviously do matter when someone kills someone or just goes out of their minds.
Well first of all, it's not that computer games make people go kill someone and be violent in general, that should be obvious to any sane person. It's the way you are that makes you do things you do (which not only depends on the way your parents treat you, but a whole lot of other things. Good, caring parents is not something that should work 100% in all cases). If you're an angry, psychotic person you will choose to play Doom over Tetris. That doesn't mean however, that Doom (or any other violent game) caused it because this is not about computer games and this is not about violent movies. Everyone just seems to pin-point a right reason for all the violence and/or whatever it is they want to prove, searching for reasons, coming up with their "truth", when really things are more complex than that, you cannot just ignore all the rest of things that obviously do matter when someone kills someone or just goes out of their minds.