Nancy Lynn Shoupp, 26 and a mother of two, vanished in the early morning hours of April 28, 1990, during a contentious divorce. She spent the night with a male coworker in Boulder and left his home about 3:30 a.m., reportedly planning to drive to her estranged husband Stephen Shoupp’s residence to pick up the children by 4:30 a.m. Nancy never arrived and was not seen again.

Her dark green Volvo was later found parked at her Littleton home; neighbors saw the car in its usual spot about 7:10 a.m. that morning. Nancy, a reliable employee at a computer conventions planning company, also failed to show up for work. Her stepmother reported her missing. Investigators focused on Stephen, who said Nancy never came for the children and who went to her home around 7:00 a.m. He took the children to the zoo instead of attending a planned sporting event and stopped cooperating with police several days later.

A disturbing detail came from the couple’s three-and-a-half-year-old son, who reportedly told authorities he saw his father carry a sleeping Nancy to the car, drive down a black, bumpy road, put Nancy by a tree, and leave her there. No charges have been filed in connection with Nancy’s disappearance. Does anyone have information about Nancy’s last movements or the locations her husband described?