Diane Sue Gilchrist
Diane, approximate photo date 1974 Age-progression to age 54 (approximate photo date 2013) Warren Forrest
Missing since: 05/29/1974
Type of missing case: Endangered Missing
Date of Birth: 08/08/1959 (60)
Age at time of disappearance: 14 years old
Height / Weight: 4'10, 100 pounds
Other characteristics: Caucasian female. Blonde hair, blue eyes.
Details at time of disappearance: Diane was last seen in Vancouver, Washington on May 29, 1974. She left her residence in the 1800 block of Franklin Street and got into a van driven by an unidentified man. She has never been heard from again.
Warren Leslie Forrest, a suspected serial killer, is a person of interest in Diane's disappearance and in the 1971 disappearance of sixteen-year-old Jamie Grisim. A photo of him is posted with this case summary. He is thought to have raped and killed at least six young women in the Vancouver area. He was convicted of murdering one nineteen-year-old woman in 1978 and received a life sentence. He is still incarcerated and was denied parole in 2017.
The bodies of three other women have been recovered in rural Clark County, and are thought to be possible victims of Forrest. He has never been charged in connection with their cases, or in Diane's or Jamie's disappearances, however. Diane's case remains unsolved.
Other case information
Agency in charge: Clark County Sheriff's Office
Other information: The National Center for Missing and Exploited Children
Psychic detective links:
Revised: October 12, 2004. Last updated September 18, 2018 details of disappearance updated.