Of course the Chicago Tribune buried this story in the back section

Concealed carry permit holder thwarts an armed robbery in Chicago, kills assailant

The normal weekend carnage in the president’s hometown of Chicago sports a most unusual incident. Despite all its stringent gun laws, a fully-permitted concealed carry armed citizen managed to prevent an armed robbery at a deli/check cashing store in a poor Hispanic neighborhood. 

Jeremy Gorner, Gregory Pratt, and Megan Crepeau (a story so unusual and significant that 3 reporters were assigned) report in the Chicago Tribune:

http://www.americanthinker.com/blog/2015/11/rare_as_hens_teeth_concealed_carry_permit_holder_thwarts_an_armed_robbery_in_chicago_kills_assailant.html