My last year in college, one of my circle of friends went nuts, pulled out an assault rifle and started shooting on the student union lawn. It wasn't an easy thing to deal with then, but at least they CAUGHT her, so when it was over, it was over.
This not knowing is sucktastic. You hope they don't do it again, but in order to be caught they HAVE to do it again.
Where is Tom Cruise and his future crimes police when you need them?