they probably are just blaming mortal kombat which must be some thing new to them

I listen to Eminem, play MK, Resident Evil, Silent Hill, GTA and MGS. I've had violent thoughts, but I'd never act on them. If a person is capable of something like that, then it wouldn't have been a video game, a TV show, a movie whatever. If they never had the chance to play MK, it would still be very likely to happen, what they did I mean.