The shooting happened around 11 p.m. Saturday on the 1800-block of North Kostner Avenue in the Hermosa neighborhood.
The victim, 55, was found with a gunshot wound to the chest. He was taken to Mt. Sinai hospital where he later died, according to Chicago police.
He was later identified as Ely Martinez by the Cook County Medical Examiner's Office.
Video shows a large police presence around what appears to be an auto detailing shop.
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It's unknown what led to the shooting.
No one is in custody.
CPD Area Five detectives are investigating the shooting as a homicide.
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