Audrey Gygi, 47, was found murdered in her trailer on Duval Street in Ocean City, Florida, sometime between late Tuesday, May 19, and early Wednesday, May 20, 1987. Coworkers reported her absence, which led to the discovery of her nude body. Evidence at the scene indicated she had been stabbed, and a later forensic finding of a semen stain on a bedsheet helped link the crime to a perpetrator.

The killing was later tied to a series of homicides that struck Okaloosa County from 1985 to 1987. Frank Athen Walls, who was living nearby and working as a dishwasher at the time, was indicted in 1993 and pleaded no contest to Gygi’s murder in 1994 after DNA evidence connected him to the scene; he had already been convicted of other murders and was serving a death sentence. Investigators said the crimes in the series were sexually motivated, mostly involved stabbing, and occurred on Tuesdays or in the early hours of Wednesday.