Internet surveillance not the only way
What happened to the art of surveillance excluding internet surveillance? There are other ways to survey than IT. In the first step those morons shouldn't have gotten weapons so easily, that's the big issue. If you restrict the access to guns and other destructive devices and institute a reporting procedure for any suspicious customer buying an unusual quantity of chemicals you'll prevent this just as well. And that would prevent, not give hints AFTER the event happened.
Biting the hand that feeds IT
