One of the interesting things about the UT Tower shootings was that they would have been even worse had faculty members not returned fire from their offices. Back in those days, at least in Texas, university faculty were not hoplophoic and some kept their hunting rifles and ammunition in their offices. The heroic cop might not have made it to the Tower without the covering fire from faculty offices.
Something to remember now that so many academics in the heartland are getting vapors about "campus carry" laws.