William Bill Petryk was 56 when he was found dead in Chester, Pennsylvania, on April 2, 1981.

Investigations at the time and in the years since have not produced any publicly identified suspects, and no arrests have been announced. The case remains an unsolved homicide and a cold file in the community where he lived.

If anyone knew William Petryk or has information about his life, movements, or the circumstances around April 2, 1981, please share what you can.