By

David Kohn /

CBS/ February 11, 2009, 9:05 PM

Tonight: The Mystery Of Slide Mountain

Monday: "The Mystery Of Slide Mountain" August 12, 10 p.m. ET/PT

Peter and Rinette Riella Bergna were a seemingly normal and happily married
couple. The couple were driving in the Sierra mountains. Their pickup truck
ran through a guardrail and down an 800 foot cliff. Rinette was killed;
Peter, who was somehow ejected, suffered relatively minor injuries. Was it
an accident, or murder? Find out.
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