http://www.startribune.com/local/132289623.html
"When [the police] arrived, a man with a gun who said he had a valid concealed-weapon permit approached [the police] and said he had interrupted the robbery of a woman in her 60s. The man said that he had pursued the robbers, a male and a female, on foot, that gunfire was exchanged and he shot and killed the male robber."
The pursuit part is what worries me. Was he an unwilling participant?
This one bears watching.