Saying violent videogames will make you shoot someone would be like saying watching The Professional will make you an assassin. Simply playing the roll of someone or something in a game does not make you become that person, fantasy exists and normal people can differentiate between the two. Just because a crazy person kills a bunch of kids does not mean that everyone will start murdering children, let's remember that murder on this scale hasn't happened in a long time, and it's only recently that a few crazy people popped up.