Car Found in Canal Linked to Couple Who Vanished in 1978

Dana Null and Harry Atchison were last seen driving away from a Florida home 36 years ago.
0:53 | 01/23/15

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Transcript for Car Found in Canal Linked to Couple Who Vanished in 1978
It's a major break in a missing persons case from the seventies. After a car was pulled from a Broward canal. It's the dodge Cornett fifteen year old Nina Knoll and her boyfriend wait Hutchinson. Were last seen in. That was basically the last time that they were seen. No one knew their family members didn't know for sure what happened to him. Until Thursday when an employee of his South Florida water management was doing routine maintenance and his equipment got caught on something. Just north of state route 84 in Markham park. Turns out it was a 1969. Mangled Clark. Backtracked to October 7 1978. That's when Knoll in Hutchinson went to a four concert in Hollywood and got into some sort of an argument outside his house then drove off together. That was the last time I there were seen. After 36 years not not having. Answers certainly this is not the answer that they are hoping to get. But at least they have something maybe they don't like what happened to their loved ones.

This transcript has been automatically generated and may not be 100% accurate.

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