Updated: September 26, 2012 7:28AM
A man was shot and killed in the South Chicago neighborhood on the South Side Tuesday evening.
A person riding a bicycle fatally shot Antonio Singleton, 22, as he stood outside with several other men in the 8700 block of South Marquette Avenue about 7:15 p.m., authorities said.
Singleton, of the 100 block of West 111th Street, was shot in the back and was dead at the scene, authorities said.
No one is in custody as Area South detectives investigate.