A few days after the assassination of President Kennedy , Deriabin wrote a lengthy memorandum for the CIA . In it he theorized that Oswald was a Russian KGB agent who either was dispatched to kill Kennedy or was sent to the United States on a different mission and then committed the assassination on his own . Deriabin contended that the Russians would have accomplished several objectives by eliminating Kennedy . Among them was removing the West 's preeminent cold warrior from the scene ; constraining US covert actions against Cuba , which would be stigmatized as acts of vengeance ; and divert the Russian people 's attentions from their many domestic problems
assassination of President Kennedy
Assassination of John F. Kennedy
Peter Deriabin