The Only Person Who Knew Both Kennedy and His Killer -

 While in the Soviet Union, Priscilla Johnson McMillan met a young American in her hotel who was trying to defect. His name was Lee Harvey Oswald.

He thought it took care of everybody and preached democracy. When he got there, he found that the Soviet Union was a bureaucracy, just like the Marine Corps. So he came back to the U.S. When he returned, he had a very hard time making a living and supporting a small family. So he decided to try to bring down American capitalism.

read the story by JOHN MERONEY
The Only Person Who Knew Both Kennedy and His Killer - John Meroney - The Atlantic: