. >> the letter was from a prisoner named carl hedley.edley said that he heard about the murder from a cellmate who was awaiting trial for shooting and robbing a truck driver. >> sometimes in the jailhouse people pick up information that they think they can sell or trade off, so that always has to be taken with a degree of skepticism. >> but the details of the letter were all accurate. >> he had details that we had not released to the public. there's only one way he could have come into that type of information. he was either there or he got it from somebody who was. >> the man's name was john skinner, 22 years old. homicide investigators questioned skinner about the murder, but he denied it. >> and like everybody else that we interview is accused of a murder, never had anything to do it, weren't there. you know, i don't remember where i was that night, but i wasn't there. >> skinner's fingerprints did not match the unidentified print found in audrey nichols' kitchen, and there were no spalding tennis shoes in the prison storage unit or a