Article, Chicago Tribune (August 27, 2012)

A University of Chicago Crime Lab study.

Additional coverage from the Sun-Times: Chicago gangs don’t have to go far to buy guns (August 26, 2012)

Additional video coverage from CLTV: Study: Crime guns found in Chicago's suburbs
Seth Bour, Deputy Director at the University of Chicago Crime Lab, talks about a new U of C study that says many guns being recovered at Chicago crime scenes were bought at stores in the suburbs.

Additional coverae from WGN Radio: Guns recovered in Chicago are bought in suburbs (August 27, 2012).

Editorial coverage from the Sun-Times: Cut off gun pipeline