David Samuel Collette, 51, was last seen leaving his Stockton, California home on the morning of May 22, 1984, bound for work and never arrived. His car was found abandoned eight days later, on May 30, in the parking lot of a Mervyn’s Department Store in Lodi, about 14 miles from his home — a key detail in an otherwise sparse timeline.

Collette was described as 6 feet 1 inch, about 185 pounds, with graying brown hair, brown eyes, and known to wear wire-framed glasses. Distinctive marks included a scar on the bridge of his nose and a surgical scar on his abdomen. He was last seen wearing a light-colored shirt and work overalls.

No leads have developed and his whereabouts remain unknown. If anyone has information about David’s movements in late May 1984 or recalls seeing his vehicle in Lodi, please come forward.