Science shows no causal link between playing video games, even violent ones, and the emergence of violent behaviors or crimes in real life.

noli's read

The fundamental distinction between temporary aggression measured in a laboratory and real-world violence is widely validated by research. The American Psychological Association (APA), in its consensus resolutions, confirms that there is no robust evidence linking the playing of video games to criminality or delinquent violence. Key meta-analyses, such as those conducted by researcher Christopher Ferguson, as well as a prospective study from the University of Oxford published in the journal Royal Society Open Science, observe no causal link to violent acts in daily life. In terms of observational evidence, population data actually show that youth criminality has generally declined during the decades of video game expansion. While some research sometimes reports a slight, transient increase in agitation after a gaming session, research attributes this instead to the frustration of defeat or competitive excitement. Finally, a recent brain imaging study published in the journal eLife confirmed that repeated exposure to intense games does not alter participants' empathy.

the sources

No named source held this one up — that absence is part of the verdict.