Joseph-
You are correct – Munn’s body was found before Fossett disappeared.
There may have been other bodies found in the wreckage of some of the other planes, but the one that got the attention at the time (to the best of my recollection) was a WW II flier, and Munn seems to be the one who fits that profile.
I thought I remembered the remains being found during the search, although the subsequent look-up of the story shows that the identification is what occurred in that time-frame.
I suspect “anon for this” may also be thinking of this story, but I may be wrong.