Does video games cause violence?

Hello readers, today I'm writing with the intention of being understood, I feel like what I'm talking about is very controversial and sensitive.

There has been a recent erupted of accusations if video games caused violence. There have been many atrocious shooting to where the murderer was linked to first-person shooters or any game with shooting "someone" that resembles a human being. In Germany, there was a disastrous shooting in the city of Munich, 9 people were killed. There was a report on him being a big fan of first-person shooters. This might of been the cause of why he did it, but nor was it the reason he did it. There could've been other things in his past of why he did it. Movies, Social Media, Music, even school.

The question I ask is, why isn't there more shootings if video games cause violence/lead people to kill another human being? There are over millions are millions of people who play Call of Duty, Gears of War, Overwatch, It's ridiculous that people are blaming video games for the horrible events the others cause. The most popular video game is a kids game. Think about that for a second. The game that everyone is talking about is a kids game. The game is called Minecraft, is a game about you being spawn in a world and you try your best to survive. You can build, Mine for resources, Travel around your own world, and so much more. It's a video game with a beautiful community, yet video games as a whole are being attacked.

Furthermore, these shootings are atrocious and should never happen. It hurts to see innocent people die. What I think is leading to all these shootings is mental health, I don't believe and never want to believe someone wanted to shoot a public crowd just because they wanted to. I'd love to hear what other people think especially when we are making the same mistake we did years ago. Only blaming one group of products or people. There could've been a rough childhood. I'm not saying video games have nothing to do with this, but I do think they can be a reason. There are many other reasons and I want people to understand that.