No matter what the gun laws are in Chicago those 20 people would have been shot. Those are all about outlaws shooting other rival outlaws over money, status, drugs, territory, etc. If CC is passed then many muggings, robberies, thefts, home invasions, mob actions, etc will be reduced. These are crimes that go unreported by the media, and are often unreported to the police. The crimes that they don't want the public to know about.