House Of Mystery True Crime History

 In 2011, as author Glenn Wall began research on what became a book on the Valerie Percy murder case (Kenilworth, Illinois, 1966), he was unaware that there was a previously unnamed criminal whom the FBI considered to be a prime suspect for the murder.However, he did learn that police couldn't make anything of one piece of evidence found at the crime scene nor of two other area crime scenes whose crimes were linked to the murder. It was odd, they said. He took their word for it, and it didn't mean anything to him at the time. He never thought he’d have reason to revisit the case.He couldn't have been more wrong, and that mysterious evidence is but one reason why. Wall was aware that the suspect had moved to San Francisco in the mid 1960s, and it had crossed his mind that he could have been the notorious criminal known as the Zodiac Killer, whose killings remain unsolved. But he didn't know then that there are dozens of reasons to believe that he actually was Zodiac nor that one of the most persuasive is