This is a gamer running through a massacre at tournament

The man behind the massacre at a video game tournament in Jacksonville, USA, is 24-year-old David Katz.

His victims were gamers Eli Clayton (22) and Taylor Robertson (27). Whether Katz deliberately sought out his victims is not clear. After the shooting he put an end to his life. On shocking video images it can be seen that shortly before the shooting a laser point appeared on the body of one of the victims. The tournament could be followed via a livestream on the internet. The police do not yet make statements about the gunman's motive.