A 23-year-old man died after he was found shot in a car early Saturday in south suburban Chicago Heights.

At 4:16 a.m., officers found Michael Overall sitting in the driver’s seat of a blue Chevrolet Impala with a gunshot wound to the head in the 1800 block of Chicago Road in Chicago Heights, according to Chicago Heights police and the Cook County medical examiner’s office.

Overall was initially taken to St. James Hospital in Chicago Heights, then was airlifted to Christ Medical Center in Oak Lawn, where he was pronounced dead at 5:26 p.m. Saturday, authorities said. The medical examiner’s office listed Overall’s home address in University Park, but police said he was a Steger resident.

His death was ruled a homicide, according to the medical examiner’s office.

The Illinois State Police crime scene services were contacted to process the scene.

The South Suburban Major Crimes Task Force is assisting Chicago Heights police with the investigation. Anyone with information is asked to call detectives at (708) 756-6422.