More looking for the quick fix... it's the guns, it's the games, it's the movies, it's the (insert knee in eye and tell us what you think here), just get rid of that thing and we'll all live happily ever after.
I think the problem is one of magnitude and society. Magnitude is a problem because in todays connected world, even problems of lower magnitude get a LOT of coverage if they're attention grabbing (for everyone killed with a gun in the US, something like 6 commit suicide... but that's not a headline grabber). Society is a problem because of the norms that don't just accept violence but glorify it, media is just a symptom (they give us what we want).
The reason these quick fixes are attractive is because there is no easy solution, and people want to "take action" when something horrific like this happens. There's no action they can take that will really help, so they flail around until they settle on a scapegoat.