Mark Shaw Jennings was 34 when he had his last known contact on September 11, 1991, after relocating to the Seattle area in 1988. He is described as a Black male, 5 feet 9 inches tall, about 180 pounds, with black hair showing a bald spot, brown eyes and a mustache.

No missing-person report was filed with the Seattle Police Department until May 26, 1993 (case number 93-231549), a gap that has not been publicly explained and that likely complicated early investigative efforts. Decades have passed without a definitive explanation for his disappearance.

If anyone knew Mark’s routines, places he frequented in Seattle, or has information about what happened around September 11, 1991, please come forward.