An undated photo provided by the South Dakota Attorney General's Office shows a Studebaker found this week in a creek near Elk Point, S.D. Two teenage girls from the area were last seen May 29, 1971, driving a car like it. Remains found in the vehicle may be those of the two teenagers. AP hide caption

itoggle caption AP

The two cars recovered from Foss Lake in western Oklahoma. Bodies were found inside both. The discoveries may help solve the mysteries of what happened to people who went missing decades ago. Laura Eastes/Daily Elk Citian/AP hide caption

itoggle caption Laura Eastes/Daily Elk Citian/AP