I'm mostly annoyed at the sensationalist headline, this has got nothing to do with the game itself. They knew their suspect used a service provided over the int

I'm mostly annoyed at the sensationalist headline, this has got nothing to do with the game itself. They knew their suspect used a service provided over the internet by a company based in California, and used that to track their suspect. The article actually doesn't say how, but I'm guessing they knew his US ISP and address, and sent that in their request. Oh, and the company happened to be Blizzard, and the service happened to be World of Warcraft, but that's completely irrelevant, it could have been any service, and it's not like the police officers played the game, so the claim that the law reached into the game is completely false.