Aman was found shot to death Saturday afternoon in the Austin neighborhood on the West Side.
Officers responded at 12:23 p.m. to a call of a person lying face down in a vacant lot in the 5400 block of West Ohio, Chicago Police said.
Antoine D. Watkins, 22, was dead at the scene, according police and the Cook County medical examiner’s office. He lived about a block away.
An autopsy Sunday found Watkins died of multiple gunshot wounds and his death was ruled a homicide, according to the medical examiner’s office
Area North detectives were conducting a death investigation.