They had some campus newspaper kid on Fox today - very well-spoken, sharp kid, made the "professionals" covering this story look like bozos.
Anyway, in his interviews with staff and students, he found that the killer had written graphically violent plays in his English class, and a few other "signs". After the Fox Friends clucked a bit and wanted to know why his professors didn't take action, the newspaper kid said basically, like what? There's no law against writing about graphic violence, otherwise half of Hollywood would be behind bars.
There's also no law against being an anti-social loner. So what do you do about something like that? Everyone's so upset and seem to think that SOMETHING could have prevented this tragedy. But what?