Diana Lynn Harris, a 27-year-old woman, was last heard from on July 15, 1981, when she made a phone call to her mother from her home on No Name Key, Florida. She had recently moved to the Florida Keys after losing her job in Michigan and was working two jobs at the time of her disappearance. Diana had sent her children to Michigan earlier that summer to visit their father and was supposed to pick them up in August for a family wedding, but she never arrived.
At the time of her disappearance, Harris was living with Gary Vincent Argenzio, in a house known for drug activity. Suspicion quickly fell on Argenzio after Diana went missing. Witnesses later claimed Argenzio had confessed to harming Harris during an argument, and an informant reported seeing signs of violence in their home. Argenzio himself fled to Mexico shortly after Diana disappeared, though he was later extradited to Florida and convicted of unrelated theft charges. Despite these suspicions, no one was ever charged in connection to Diana's disappearance, and her case remains unsolved.
Diana's family has continued to seek answers, with authorities considering foul play likely. Her case remains an enduring mystery in the Florida Keys.
Last Seen: Jul 15, 1981
