Eldon Shore, a 42-year-old pilot, disappeared on July 4, 1965, after leaving Key West, Florida, bound for Miami. He was piloting a twin-engine Piper Aztec and never arrived; neither Shore nor the aircraft has ever been found. Shore was described as 6 feet 3 inches, with blond hair, blue eyes and tattoos on his arms.

Although he was scheduled to carry passengers that day, Shore flew alone, a detail that has never been fully explained. Initial searches for the plane turned up no results, and no remains or concrete leads have emerged. There has been minimal collection of DNA or other identifying material because nothing recoverable has been located.

What information might help resolve where Eldon Shore and his plane went on July 4, 1965?