Mabel Tresner was 80 when she disappeared from Jensen Beach, Florida, on August 16, 1993. She lived alone and was reported to be in good mental and physical health. A friend arrived that morning to take her to volunteer at the Jesus House of Hope thrift shop but found Mabel missing; later that day her daughter found the front door unlocked, which was out of character.

Personal items normally taken whenever she left — purse, car keys, dentures, eyeglasses and jewelry — remained at the house. Her bed was neatly made and sandals were beside it. Witnesses later reported seeing an elderly woman in a nightgown near the Roosevelt Bridge in Stuart around 1:00 a.m. on August 17, though it is unclear if that was Mabel. Investigators initially considered a medical-related wandering but, given the unusual state of the home, foul play became a strong possibility as the case grew cold. The Martin County Sheriff’s Office later reopened the investigation to seek new leads.

Did anyone in Jensen Beach or Stuart in August 1993 remember an elderly woman wearing a nightgown near the Roosevelt Bridge or any other sighting that could help locate Mabel?