Circumstances of Disappearance
Stone was last seen in Coeur D' Alene, ID on May 16, 1986, when she showed up at her physical therapist's to receive treatment for a knee injury. The injury had kept Stone from dancing at State Line's Kon Tiki nightclub for several months. She failed to attend the next appointment with the physical therapist on May 19th.

Her husband reported Stone missing when she did not visit him in the Ada County Jail over Memorial Day weekend. He was in jail for jumping bail on an auto theft charge.

Officers who checked her house found nothing suspicious. Her 1974 Chevrolet Nova was parked out front. Several days worth of newspapers were piled on the porch. Authorities suspect that she may have been taken against her will. No one has seen nor heard from Stone since the day she vanished.
Sally had only been a resident of Coeur D' Alene for two months at the time of her disappearance. She didn't have many friends other than the other dancers at Kon Tiki.

Stone was the second Coeur D' Alene woman who went missing in two months. In March, Deborah Jean Swanson went missing while hiking in the area.