Ronald Sidney Shelly was 32 when he vanished from Tulsa, Oklahoma. He was last seen on December 10, 1981, at a residence near 47th Street and Memorial Drive; his vehicle was left behind and he never contacted anyone afterward.

Investigators found boots, eyeglasses, and traces of blood at the house where he was last seen, evidence that led authorities to conclude Shelly was likely the victim of a homicide. His body has never been recovered, no arrests have been announced, and no suspects have been publicly identified.

What happened to Ronald Shelly that December day, and where are his remains? If anyone knew him or has information about his disappearance, please share what you know with Tulsa law enforcement.