In the early 1960s, several women in Boston were raped and murdered in what became known as the Boston Strangler and Silk Stocking murders. Albert De Salvo confessed to 13 of the murders, but due to a plea bargain, was only convicted of sexual assaults and robberies. He was given a life sentence, but was killed in his cell in 1973. In 2002, DNA tests of one of his victims, Mary Sullivan, did not match De Salvo, giving support to his family's claim that he was not the Boston Strangler.
More: Profile of Albert DeSalvo