Peggy Sue Case RESOLVED Case, circa 1988 Missing Since 07/09/1988 Missing From Spanish Fork, Utah Classification Endangered Missing Age 27 years old Height and Weight - Distinguishing Characteristics - Details of Disappearance Case disappeared from Spanish Fork, Utah on July 9, 1988. In May 2017, her skeletal remains were found buried under the backyard storage cellar of her own home in Spanish Fork. Her murder is under investigation. Investigating Agency - Source Information CBS News . .