Alejandro Cuevas, 26, left, and friend Ricardo Gama, 16, center, play the newly released terrorist-fighting video game "Counter Strike: Source Beta," Thursday, Aug. 12, 2004, at the Blue Screen Gaming cyber cafe in Los Angeles. Online game play draws teens to cyber cafes for bouts of virtual fighting, but the arcade-like establishments may find themselves turning the youths away when new rules meant to dispel a spate of violence at several cafes take effect. (AP Photo/Damian Dovarganes)

Patrick Markey, a psychology professor at Villanova University who focuses on video games, found in his research that men who commit severe acts of violence actually play violent video games less than the average male.

About 20 percent were interested in violent video games, compared with 70 percent of the general population, he explained in his 2017 book "Moral Combat: Why the War on Violent Video Games Is Wrong."

Another study by Markey and his colleagues showed that violence tends to dip when a new violent movie or video game comes out, possibility because people are at home playing the game or in theaters watching the movie.

"Everything kind of suggests no link, or if anything, it goes in the opposite direction," Markey said in an interview.

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