Mark Dereich was 21 when he was found shot to death on December 6, 1982, in an upstairs apartment at 112 Illinois Avenue, Youngstown, Mahoning County, Ohio. Officers who responded that day discovered him lying on the floor with a gunshot wound. The Youngstown Police Department classified the death as a homicide, but the circumstances of the shooting remain unclear and no suspect has been publicly identified.

The case remains unsolved and is listed among Ohio’s unsolved homicides. The Ohio Bureau of Criminal Investigation and local authorities continue to seek new information that could help bring answers to Mark’s family. If anyone has even a small detail about that night or about Mark’s movements around December 6, 1982, contact the Youngstown Police Department or the Ohio Attorney General’s Office.