I didn't say it was solely responsible. It was a factor. But YOU dismiss it with laughable hypothetical scenarios. You know, he could not have liked the Grand Theft Auto Games for whatever reason...He might not have known about the release. If he truly immersed himself into w/e game he was playing. He could have been obsessed and not clearly aware of the world around him. Yes, if he went to a sophisticated gun range for 16 hours a day, I'm sure that he would have become a better shot. Though, he was in the Navy which probably contributed to him actually knowing how to fire a gun!! These video games affect the mind, and a lot of the past shooters we've had recently had this same exact combination. Video Games + Mental Illness.The idea that video games were in any way responsible for his behaviour is laughable and offensive.
Grand Theft Auto 5 came out yesterday - if he was truly a fan of violent video games he would have delayed his killing spree until *after* he had had a chance to play it thoroughly.
And wouldn't *actual* gun training and familiarity with his real-world gun have more to do with his proficiency to kill people than his imagined virtual gun use in a video game?