The Los Angeles and Chicago metropolitan areas had the most gun murders among the nation’s fifty most-populous metropolitan areas in 2009 and 2010 (the latest years for which data is available), according to a report released today by the Centers for Disease Control and Prevention. … The New Orleans metropolitan area, however, had the highest rate of gun murders, with 19 out of every 100,000 people in the area being gunned to death in 2009-2010. …