Robbery foiled in Milwaukee by person with a gun

This could be an interesting example of how Milwaukee is changing given the new concealed carry law. From the Chicago Tribune:

Milwaukee police say an armed robbery attempt at a grocery store ended when a customer opened fire.

A man armed with a shotgun entered an Aldi store in the north side of the city about 7 p.m. Monday and tried to rob the store, authorities say.

A customer pulled out a gun and fired at the suspect, who fled without any cash or merchandise. None of the employees or customers were injured. . . .

Thanks to MaryEllen Libraro for the link.

UPDATE: Apparently, the concealed handgun permit holder used his gun in a store that was posted as a gun-free zone. Law Professor Ann Althouse has the story here. I would like to give a talk on these issues at the University of Wisconsin.

Thanks to pakurilecz for this link.