Details of Disappearance
Cheryl and her friend, Pamella Jackson
, disappeared from Vermillion, South Dakota on May 29, 1971. Foul play was suspected in their cases and at one point authorities charged a former classmate with their murders, but the case was dropped for lack of evidence.
In October 2013, Pamella and Cheryl's car was found submerged upside-down in a local creek with their bodies inside. Their deaths are under investigation.