I don’t remember hearing about this. It was never found?

By Tim Wright
AIR & SPACE MAGAZINE - SEPTEMBER 2010
Seven years after her brother disappeared from Quatro de Fevereiro International Airport in Angola, Benita Padilla-Kirkland is trying to persuade the FBI to re-open his case. She believes she has the new information agents told her they require. But she suspects that the agency already has more information than agents will admit to.
Sounds like a CIA deal.