David Arthur Stack (July 5, 1957 – June 9, 1976) was an American man who was murdered while hitchhiking from his home in Broomfield, Colorado to California.

[2] Stack graduated from high school in 1975 and later decided to hitchhike, likely to visit relatives in California.

[2] While being treated as a missing person before his body was identified, Stack was excluded from thirteen other unidentified decedent cases.

He was estimated to be 5 ft 9 in (1.75 m) tall and at a weight of 170 pounds (77 kg) at the time of his death and had O positive blood type (the most common).

[8] He was believed to have been seen alive in the nearby town of Wendover, Utah at approximately 3:00 PM, a day prior to the discovery of his body.

[9][10] After the examination of his body was complete, the young man was buried in the Tooele City Cemetery, after the case remained unsolved.