New debate over violent video games[ Tue, 24 Apr 2012 12:56:11 EDT ]Norway's alleged mass killer testified on Thursday that he played video games as a way to train for a shooting spree that killed 77 people last summer. In particular, Anders Behring Breivik said at his trial that he played "Call of Duty: Modern Warfare 2" as a means of shooting practice, according to CNN's report.