Jaynisha Scheffer was shot and killed Monday night in the Chicago Lawn neighborhood.
Scheffer, 19, was walking with a group in the 2200 block of West 69th Street when someone rode up on a bicycle and opened fire at 7:05 p.m., authorities said.
Scheffer, of the 7600 block of South Paulina Street, was shot in the back and taken to Advocate Christ Medical Center in Oak Lawn, where she died at 10:11 p.m., authorities said.
Nobody has been charged for the murder.
Area Central detectives are investigating.
-- Sun-Times Media Wire