There are links, but they are part of the overall reality check an individual must make. Violent movies, TV, and other media influences are all part of how we understand our relationship to the society we live in. Antisocial behavior had many root causes, and it is like the little kid who picks up his daddy's gun and points it and goes "POW" but the gun is real and loaded and he shoots his daddy. This is part of conscious decision making and a lot of young people think they can fly off the roof or otherwise do things which are harmful to themselves and others. By adulthood it is assumed that you have the ability to discern the difference between a violent movie and real life, but it is a cumulative effect of your conditioning that makes it feel dangerous to do things like you see in movies or games, and video games are at best a small part of that process.