It's enough to make most people's skin crawl -- supposed souvenirs from some of America's most gruesome murders, trophy tokens that tell a tale of horrifying crimes and the victims behind the killings. It's murderabilia.
Why would anyone collect a half-eaten bag of Reese's Pieces from Charles Manson or John Wayne Gacy's haunting clown paintings? Although it may seem strange, collectors will pay thousands of dollars for mementos allegedly from some of the worst criminals.
READ MORE: The fight against murderabilia