Video Game Violence: Does it exsist?

When I started my research I noticed that many of the top- selling games were either war games, such as Call of Duty: Modern Warfare 2, which brought in $550 million in the first five days(Pro Con.org). Video games such as these are said to be responsible for school shootings, increased in bullying and violence toward women(ProCon). Although video games have had an increase in bullying, the plus side to video games is that they can be a safe outlet for aggression and anger for kids(ProCon). Growing up I have been playing video games, violent or not, I do not think that they have desinsitized me towards violence. I personally think that there is no such thing as video game violence, I think that people who use this as an excuse already have some mental inbalance of feelings in there body and maybe the video game industry has made it come out, but if exposed to a healthy mind it will be fine. I don't think that exsist but I want to further my research to see more results have scientific test that may have further information on the subject.