December 5, 2017 6:15 pm Obama Speaks at Climate Summit in Chicago Former President Barack Obama spoke Tuesday to a summit of mayors from around the world gathered in Chicago to address concerns about climate change. NBC 5’s Mary Ann Ahern reports. Local 9:34 Chicago police release new details in arrest of Xavier Tate 2:23 Suspect accused of killing CPD officer Luis Huesca 3:10 Suspect charged in killing of Chicago police officer faces additional charges 2:03 Prosecutors detail how Calumet City cold case unfolded, with suspect finally arrested 0:54 Richest person in Illinois revealed in new Forbes Magazine ranking
