Yes several video games have a violent theme to them, but that doesn't mean most people that play them will go Berserk upon the Innocent.
http://www.huffingtonpost.com/2012/12/19/video-games-sandy-hook_n_2330741.html,
http://www.rockpapershotgun.com/2012/04/19/breivik-testifies-about-gaming-press-ignores-the-facts
Its never a good idea to start treating the world as if its just a Shoot_'em_up video game. But some people want to resort to violence to create their version of reality.
http://www.telegraph.co.uk/technology/video-games/9272774/MPs-call-for-violent-video-game-ban-after-Breivik-claims-that-he-trained-on-Call-of-Duty-Modern-Warfare.html
http://en.wikipedia.org/wiki/List_of_banned_video_games,
http://www.complex.com/video-games/2012/01/the-25-most-violent-video-games,
http://www.pcmag.com/article2/0,2817,2379959,00.asp,
http://www.pcworld.com/article/161180/most_violent_videogames.html
Of course, when a car or any other tool or device is used in a careless way, the danger factor immensely increases. http://en.wikipedia.org/wiki/Grand_Theft_Auto_(series)#Controversy
Responsible people don't treat real life as if its just a Shooter_game. However, some people with monstrous tendencies will eventually use anything to cause harm to others.
http://www.huffingtonpost.com/2012/08/18/anders-breivik-sympathizer_n_1803480.html,
http://www.huffingtonpost.com/2012/12/19/adam-lanza-motive_n_2329508.html?utm_hp_ref=mostpopular
http://en.wikipedia.org/wiki/List_of_rampage_killers:_School_massacres,
http://c-shapes.blogspot.ca/2012/12/young-fun-and-some-occasional-deadly.html,
http://desertshapes.blogspot.ca/2012/12/the-tragedy-of-innocent.html
