In 1992, a man was pulled from the Allegheny River, his head bloodied and his pockets turned out.
It was never a whodunit.
The witness who directed police to the man’s body in late July 1992 also directed them to a suspect: a 31-year-old man from McKeesport. He was arrested, charged, tried and convicted of third-degree murder — all while his victim remained unidentified…