DNA from chewing gum nails longtime sexual predator decades after reign of terror: report

Mitchell Gaff, a 68-year-old self-proclaimed rapist, pleaded guilty to two decades-old cold case murders after investigators matched DNA from his discarded chewing gum to crime scenes. Police used a ruse, posing as gum researchers, to collect the DNA sample that linked him to the 1980 and 1984 murders of Susan Vesey and Judith 'Judy' Weaver.