Tammy Lynn Jarschke was 13 when she ran away from a foster home in Seaside, California on June 25, 1981. Her remains were found about three months later in a remote forest along Chews Ridge near Tassajara Road. She and 14-year-old Tanya Jones had been bound to trees with electrical wire and tortured before their deaths. A screwdriver had been driven into Tammy’s body with enough force that the handle broke off.

The investigation ultimately tied these killings to Joseph Michael Nissensohn, who was convicted of first-degree murder in Tammy’s and Tanya’s deaths and in the later killing of 15-year-old Kathy Graves in South Lake Tahoe in 1989. During the trial Tammy’s mother, Penny Jarschke, described profound psychological trauma following her daughter’s murder. The jury recommended death.

Anyone with memories of Tammy, Tanya, or that area of Chews Ridge in 1981 who can add details is asked to share what they know.