CHICAGO HEIGHTS, Ill. (CBS) — Police in south suburban Chicago Heights were questioning a person of interest Monday afternoon, after a 28-year-old man was found dead from an apparent shooting.

Police responded to a call about a “man down” in the 400 block of West 15th Place in Chicago Heights around 7:30 a.m. Monday.

When officers arrived, they found a man lying face-down on the walkway leading up to the front porch of a house. The man was identified as 28-year-old Frank Carter.

Police said it appeared Carter had been shot, but autopsy results would not be available until Tuesday.

A “person of interest” was being questioned by detectives.