Sheree Warren was 25 and a mother to a three-year-old son when she disappeared after work on October 2, 1985. She finished her shift at the Utah State Employees Credit Union in Salt Lake City and was seen walking to her maroon 1984 Toyota Corolla in the parking lot around 6:30 p.m. Her stated plan was to meet her estranged husband, Charles Warren, at a nearby car dealership to give him a ride to Ogden, then pick up their child and return to her parents’ home in Roy. She never arrived at the dealership, never picked up her son, and was not seen again.

Investigators focused early on two men close to her life: Charles Warren, who said he canceled plans and went for a jog, and Cary Hartmann, a former reserve Ogden police officer who years later was convicted of unrelated sexual assaults. Charles and his then-reconciled first wife began cooperating with polygraphs but later stopped; Charles was never officially cleared and died in 2022. Sheree’s car was found on November 11, 1985, parked at the Aladdin Hotel and Casino in Las Vegas, Nevada.

If anyone knew Sheree, her routines, or saw her car in Salt Lake City or Las Vegas that October, please share what might help the investigation.