Angelo Porter was fatally shot in the Grand Boulevard neighborhood Tuesday afternoon.
Porter, 23, was walking in the 600 block of East 51st Street when a gunman approached from behind and shot him in the head about 1:40 p.m. Tuesday, authorities said.
Porter, of an unidentified home address, later died at John H. Stroger Jr. Hospital of Cook County, according to the Cook County medical examiner's office.
Nobody has been charged for the murder.
Area Central detectives are investigating.
-- Sun-Times Media Wire