May 20, 2015 5:25 pm Marijuana Trade Show Hits Chicago The Marijuana Business Conference & Expo is billed as America’s oldest and largest national tradeshow, and it’s not open to the public. NBC Chicago’s Phil Rogers offers a peek inside. Local 2:44 Monday morning weather 2:22 CHICAGO'S FORECAST: Rainy Monday Commute 3:03 Fallen Chicago Police Officer Luis Huesca remembered at visitation 2:08 Visitation set for Officer Luis Huesca as reward increases to $100K 2:17 Reward increases to $100K for arrest in Chicago Police Officer Luis Huesca's killing
