The media's attempts to spin and place the blame on video games because all the murderers that created these mass killings played these shooting games. Without considering half the population when making these accusations, the media comes up with its scapegoat and making it about video games not about guns.
According to globalpublicsquare.blogs.cnn.com, "There are other reasons often given for gun violence – popular culture and violent video games in particular. But as this survey across the world should have shown, countries that imbibe much the same gory culture in Europe and Australia have much lower levels of violence. Japan, with its particular fascination with violent video games, is actually stunningly low in gun deaths. So whatever you think of violent video games and movies, they don't seem to be the key cause of gun violence."