Burkette obviously needs a custom made tin-foil hat.
Beyond that I don't believe Lucy Ramirez exists. The story of the "pass-off" on the documents sounds like something out of a spy novel and something created by this man's fevered imagination.
He conveniently "burned" the originals, making it more difficult to track down the creator of these forgeries.
CBS has cleverly and simply punted the ball further down the line, they have "revealed" their source, who - miraculously is completely an innocent dupe of a fictitious "Lucy", and the real perpetrator of this forgery is still unknown. That accomplishes 2 things for CBS. It provides them cover for the still modified limited hang-out but still does nothing to reveal the source of the documents. The mystery deepens.