You must beware of the punks and the cowards of which there are far too many in the city of Chicago. A man was shot while trying to stop a carjacking in the Heart of Chicago neighborhood early Monday morning. The shooting happened just before 1:30 a.m. in the 1600 block of West Cullerton Street. Police said a 29-year-old man started up his white four-door Mercedes and then got into another car. A black car pulled up, a passenger got out and jumped into the Mercedes. When the man attempted to confront the offender, he was shot in the stomach. The offender fled the scene in the Mercedes. The 29-year-old victim was transported to Stroger Hospital in critical condition.