George Lardner of the Washington Post was the last person to speak to David Ferrie before he died of a berry aneurysm. Lardner would go on to cover Jim Garrison, and he worked with Harold Weisberg in exposing Oliver Stone's film JFK.
When going through Harold Weisberg's Archive, I was surprised to learn that they had plans to write a book together. Here is the outline that Lardner submitted to a publisher.
Alas, it was not to be. Weisberg, prickly at the best of times, immediately sent a letter to Lardner with a variety of objections, and the project was off. Fortunately, a lot of the material that Weisberg would have provided to the project is still in his archives. My book, On The Trail of Delusion - Jim Garrison: The Great Accuser, makes great use of his documents - in particular, chapter 16, "Arsenic and Old Perrin." This is referenced in VI above in which Garrison wanted to charge a dead man with being a grassy knoll assassin.
Only a staff revolt stopped Garrison.