Marten Van Harten, a 31-year-old Dutch citizen, has been missing since December 14, 1988. He was last seen in Florida piloting a small airplane that departed with an unknown destination and never returned. At the time he was described as 6 feet 3 inches, with blond hair and blue eyes.

Authorities in the Netherlands are handling the investigation because of his citizenship, and Dutch police list him as an endangered missing person with a case file noting his disappearance from Vero Beach, Florida. Few other details about the flight or his planned destination have been provided, and there has been no contact with him since the departure.

Did anyone in the Vero Beach area or former pilots who flew small aircraft in December 1988 ever hear about an unplanned disappearance matching this flight?