Remmer was last seen on January 1, 1994 in Tarpon Springs, Florida. He left the Erickson Marina on the 42-foot fishing vessel Miss Black Diamond with the boat's owner, Eugeniusz "Eugene" K. Pastula. The men were stocked for a 10- to 12-day trip. Neither of them have ever been heard from again.

The Miss Black Diamond's wreckage was discovered on January 7 by another fishing boat in the Gulf of Mexico about 70 miles west-northwest of Tarpon Springs. The pilot house and the cabin were entirely missing and so were both of the boat's occupants. Authorities believe the boat was wrecked during a severe storm. An extensive search of the ocean. turned up no sign of Remmer or Pastula. They are presumed to be lost at sea.

Photographs of Pastula are unavailable. His date of birth is January 7, 1946; making him 48 years old when he and Remmer went missing. He is described as a Caucasian male, 6'1 and 180 pounds with blond hair and brown eyes.

Some agencies give the date of Pastula and Remmer's disappearance as January 20, 1994.