Not even just rural America. The media goes to great lengths to conceal the facts when a spree killer is stopped by armed citizens, but it happens quite a bit.
Interesting...can you provide us some examples of a spree killer being stopped by armed citizens?
Yes, I can. Here's a story in the NY Times. Note that they don't tell you HOW the shooter was stopped.
Coal Town's Hopes Clouded by Killings Of 3 at Law School - NYTimes.com
What they don't tell you is that two other students retrieved their personal firearms from their cars and subdued the shooter.
Here's another one, also from the NY Times.
Witnesses Recount Shooting At Mississippi High School - NYTimes.com
What THIS story doesn't mention is that he was stopped by the armed assistant principal, who got his gun out of his car.
I could go on, but I believe your question has been answered.
There are a plethora of stories out there. RW doesn't want to admit that poeople have the right Via the Second Amendment to defend thier Liberty or that of others.