Awesome story. Drugs are illegal but people still get them. What makes you think banning guns will be any different? If anything more stuff like this would happen. I don't go into businesses that have a sign that says "No Guns Allowed" Why not put up a sign that says "Robbers, come in and run a muck noone is going to stop you." I'm not going into one of those places and get caught with my pants down when someone decides to rob it.
Serious question: Doesn't the U have a "no guns allowed" policy? I know that there was a big to do about it when that dude went on that shooting rampage at Virginia Tech.