Bingo! And Johnson did it using CIA operatives, the Mob, and Texas oil money.
I believe that is true. For there to have only been one shooter, at least one of the bullets would have had to have made at least 3 right angle turns, and that is highly unlikely.
Intel conference record lists the 20 or so conspirators by name and researchable. From the book Regicide.
Amazon excerpt:
OPERATION ZIPPER” was the code name of the assassination plot of John F. Kennedy, President of the United States of America.
The 98 pages long paper entitled “OPERATION ZIPPER Conference Record” is a long list of decisions and activities of various U.S. authorities in a CIA-conducted project. All major facts behind the Kennedy assassination are found in the “Zipper” Document. For the first time, the motives of those who organized and instigated the act are clearly and decisively exposed, as are the names and official positions of those who directed the killers. This document was probably produced by the five CIA top officials mentioned in the distribution list (McCone, Angleton, Carter, Crowley, Harvey) in order to cover themselves, since this document clearly proves that the assassination of J. F. Kennedy was anything else but a private plot by a few CIA senior officers going rampant.