Sandy Seligman was 26 and living in Vancouver when he disappeared from Miami, Florida. He was on vacation that included the Virgin Islands and the Bahamas and was staying at the Singapore Motel in Bal Harbour. On August 15, 1980, he phoned his mother to say he would be home in two days and mentioned buying her an expensive Colombian emerald.

On August 17, 1980, Seligman checked out of the motel and returned his rental car to Hertz. He was scheduled to fly from Miami to Seattle later that day, then take a bus to Vancouver, but he never made it to the airport. There have been no confirmed sightings or contact with family or friends since. Investigators and online researchers have tried leads and compared him to unidentified remains in the area, but no substantiated theory explains what happened during the short window between checkout and his scheduled flight.

If anyone knew Sandy in 1980 or has information about his movements in Miami on August 17, 1980, please share what is known.