YouTube and young terrorists videos

A little over a week ago, a Finnish student went on a rampage with gun after warning about this with YouTube's videos. It reminds us the grievous case in Virginia Tech... Who is to blame ?

The proper question to ask should be : who is not to blame ?
In my opinion, I should not blame :
- YouTube which is only a way used by those student to express their uneasiness and malaise...
- Video games despite that they're more and more violent and that we could have notice some similarities with video games heroes in their behavior and dressing...
- Media in general : some people accused the TV, series, movies, Internet to get young people more and more used to violent scenes etc... We've got here some example such as Silent Hill, Resident Evil, God of War, Carmageddon, Manhunt (this last have been prohibited for players under 18)... If those video games are as dangerous as some would say, there would be a lot of "Virginia Tech-case" more !

As a French citizen, I would blame the fact that in the US, carrying a weapon is legal... (classical accusation !) and I just ad a thing : nowadays, the smallest and insignificant current affair is so strongly forwarded and broadcast by the media that everybody focuses on it. I think that those incidents have already occurred before and will continue in the future... It's just not a new trend !