A 21-year-old man was killed this afternoon as he sat in a vehicle in the parking lot of a South Side shopping mall, officials said. The shooting happened at 3:19 p.m. on the 700 block of East 87th Street, according to police and fire officials. Witnesses said the crime scene is at the Chatham Village Square mall at Cottage Grove and 87th Street. Police News Affairs Officer Stacey Cooper said the victim was inside his SUV when someone walked up...