More than 50 years after Rita Curran’s roommate found her strangled to death in her room, police in Vermont say they have identified the killer using DNA found on a cigarette butt and Curran’s clothing. The team began retesting evidence, Trieb said, and decided to analyze the cigarette DNA using genetic genealogy – a process that uses DNA databases for genealogy research to identify possible family members of the person whose DNA is unmatched. concat(t,'\n \n\n You're watching a daily free preview\n \n\n You're watching a daily free preview\n \n