Well, we have different takes on this. On Twitter I see as many condolences for "pewdiepie" as I do for the victims. He doesn't strike me as a particularly responsible person, considering his audience seems to be throngs of elementary school children, and tweens.

I don't think it does a society much good to have Mr Heated-gaming-moment as a role model for half a million ten year olds. The world has seen plenty of unrest lately, but things can become so much worse, as kids for whom this is the "new normal" grow up.