The shooting took place on May 11 in the 9900-block of South Ewing Avenue.
Police said a suspect approached the men, took out a gun and opened fire.
A male suspect of an unknown age approached the men, took out a gun, and fired shots, police said.
All three victims were shot in the abdomen, police said. All three were transported to the hospital, where one of them later died.
Anyone with information is asked to contact Area Two Detectives at (312) 747-8271
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