Chicago Sun-Times, 01 Nov 2011 - Every pot smoker - the kid down the street, your neighbor with the nice house, the co-worker in the next cubicle - has a "guy." That guy has a guy, who has a guy, who has a guy. The top marijuana guys - Mexico's murderous drug cartels - are responsible for most of the pot sold on Chicago street corners. They've even started growing it in Wisconsin's North Woods.