Great one!
In that set of whiplash videos, there is one in which JFK Jr says he came to Milan to see the Codex. Perhaps significant?
Did a search for Codex, Milan and found this:
The Codex Atlanticus (Atlantic Codex) is a 12-volume, bound set of drawings and writings (in Italian) by Leonardo da Vinci, the largest single set. Its name indicates the large paper used to preserve original Leonardo notebook pages, which was used for atlases. It comprises 1,119 leaves dating from 1478 to 1519, the contents covering a great variety of subjects, from flight to weaponry to musical instruments and from mathematics to botany. This codex was gathered in the late 16th century by the sculptor Pompeo Leoni, who dismembered some of Leonardo’s notebooks in its formation. It is now in the Biblioteca Ambrosiana in Milan.
The Codex Trivulzianus is a manuscript by Leonardo da Vinci that originally contained 62 sheets, but today only 55 remain. It documents Leonardo’s attempts to improve his modest literary education, through long lists of learned words copied from authoritative lexical and grammatical sources. The manuscript also contains studies of military and religious architecture.
The Codex Trivulzianus is kept at Sforza Castle in Milan, Italy, but is not normally available to the public. In the main museum a room also contains frescos painted by Leonardo.
Perhaps JFK Jr learned something important. Note 7 pages are missing.