I think you are thinking of the carpet fibers there were found on his clothing. And then there was the story back then of a WH janitor hauling a rug out of the WH. And then he retired and moved away somewhere and was never seen again. End of story.
Ditter, Not carpet fibers.. I distinctly remember that it was believed he had engaged in sex shortly before his death and it was with a blonde woman.
A whole lotta stuff was swept under the rug back then.