does violence depicted in films, on television, and in video games lead to violent crime?

According to Wade, Tavris, and Garry (2014) controversy surrounds the issue of violence in video games. In fact, numerous lawsuits have been filed against video game manufacturers by the families of victims who claim that their loved ones would never have been shot had the killers not played violent video games. In your opinion, does violence depicted in films, on television, and in video games lead to violent crime? At what age should a child/adolescent be allowed to play these games? Explain your reasoning.