Patricia Patsy Campbell, 15, and her friend Tina Anderson, 12, vanished after attending a Pioneer Day celebration at Alameda Park in Pocatello, Idaho, on July 22, 1978. Witnesses said the girls went for a drive with some adults toward Moonlight Mine Road and were later reported returned to the park; Tina was expected at a babysitting job across the street that evening but never showed. Families reported them missing when they did not return home.

In October 1981 hunters found remains in Two Mile Canyon, Oneida County, about 60 miles from where the girls were last seen. Clothing matching what they wore when they disappeared and .22 caliber casings were recovered. Both girls’ causes of death were ruled gunshot wounds. Tina was identified by dental records; a partial skull was not definitively linked to Patricia until March 2007 by DNA testing, and forensic genealogy later confirmed additional remains as Patricia’s. A witness had described the girls with a young man in a blue hooded sweatshirt wearing a large ring on the day they vanished.

Investigators later said they believed they knew who was responsible and the motive, but prosecutors declined to file charges, citing largely circumstantial evidence and lost key physical evidence. The murders remain unsolved. Does anyone have information about the Moonlight Mine Road area, Two Mile Canyon, or people seen with the girls that day?