(part 2)
All of these clues that reveal the activity of that day have been left behind by one CIA agent, who was obviously in disagreement with the killing of Kennedy. Also addressed in this writing is the impact of the Twenty-fifth Amendment of the United States Constitution regarding someone like Johnson who would become president by such another conspiracy. All of this information about clues from "Hamlet" to explain Kennedy's death are due to this one very clever CIA agent who constructed the murder from activity found in "Hamlet," which, itself, is an assassination play, recreated as the script for the killing of President Kennedy.

https://www.amazon.com/Kennedy-Assassination-Hamlet-Twenty-fifth-Amendment/dp/1790285402