Diver describes searching the two vehicles . The first vehicle was a white Dodge Charger with California license plate number ZK9JX5Y2A. Routine police training with sonar gear leads to macabre discovery at lake bottom . One car contains bones and skull ; a second car also has bones .
Diver describes searching the two vehicles . One man , then 69 , went missing with sibling and friend in 1969 while in a 1953 Chevy . Routine police training with sonar gear leads to macabre discovery at lake bottom . One car contains bones and skull ; a second car also has bones .