A person was taken into in custody after the victim was shot in a South Side parking lot on Tuesday afternoon, Chicago police said.
Police said the shooting happened in the Brainerd neighborhood's 9400-block of South Ashland Avenue around 3:30 p.m.
A known person approached a 32-year-old man, took out a handgun and fired shots, police said.
The victim, shot in the stomach, was transported to Christ Hospital in critical condition. He later died, officials said.
On Wednesday, the Cook County Medical Examiner identified the victim as 32-year-old Antoine Alexander. He died of a gunshot wound to the abdomen, and his death is being investigate as a homicide.
Investigators were staged near a Page Security parking lot on Tuesday.
Employees from a nearby business say the shooting happened after an altercation between two Page Security employees.
One of the employees told ABC7 they ran for cover after they witnessed the shooting. They said the shooter ran away.
Police recovered a gun from the scene. CPD later confirmed that one person was taken into custody.
Area detectives are investigating.
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