CHICAGO (STMW) — A 22-year-old man was killed early Thursday when he was shot in the head in the West Pullman neighborhood on the Far South Side.

Bobby Pruitt-Williams was standing in the 12100 block of South Union Avenue when a gunman approached and shot him in the head about 12:10 a.m., according to police and the Cook County Medical Examiner’s office.

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By the time officers arrived, the 22-year-old was dead, police said. He was pronounced dead at 1 a.m., according to the medical examiner’s office.

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No one was in custody as Area South detectives investigated.

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(Source: Sun-Times Media Wire © Chicago Sun-Times 2013. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.)