Pilot Stewart Dunbar disappeared off Florida coast in 1980 . Daughter had hoped it would bring closure in Dunbar 's disappearance . The recovered evidence suggests the sunken plane was not Dunbar 's .
Pilot Stewart Dunbar disappeared off Florida coast in 1996 . Daughter had hoped wreckage would bring closure in father 's disappearance . The recovered evidence suggests the sunken plane was not Dunbar 's .