huffingtonpost.com

Chicago’s Heroin Problem: City’s Open-Air Drug Markets’ Surprising Connection To Mexican Drug Cartels

Considering the city leads the nation in terms of heroin overdose-related emergency room visits by a landslide, Chicago’s

heroin problem is undeniably massive and shows no sign of abating anytime soon.

http://www.huffingtonpost.com/2013/12/12/chicago-heroin-market_n_4435018.html