Man killed, sister pistol-whipped while delivering pizza in Illinois

CALUMET CITY, Ill. (WGN) - A family is pleading for answers after a young man was shot and killed and his sister was injured while out together on a pizza delivery Thursday night in Calumet City, Illinois.The family of 23-year-old Steven Cotner said he loved his sisters and would do anything to protect them. That's exactly what he was doing when his life was ripped away."Thursday he had the biggest smile ever," Steven's sister, Allison Cotner, told Nexstar's WGN. "He was just so sweet."Allison e