I strongly believe that Oswald did it alone. The Walker attempt, as you noted, not only shows his unstable mindset but his politics. Marina used to say that if Oswald had been put on trial, he would have used that forum to proclaim his hatred of capitalism and to claim that as his motive. From meeting him that one time in Moscow, I would not have predicted his later actions. He seemed angry but subdued to me. No conspiracy either. He couldn’t cross the street with someone else (I have some examples), let alone join with another person in a conspiracy. Everything he did, he did alone, as far as I am aware. I haven’t heard about the Hanks film and would like to know more. And yes, I met Vincent Bugliosi once. He was speaking in my town, Cambridge, Mass., and when I went up to him afterward he jumped to his feet and said “you’re an American icon!” Imagine. Later I read his book and saw that everything he said about me, my career as a reporter in Moscow, my lack of relationship to the US gov’t etc., was true and showed that he had read the State Dep’t, CIA and FBI files on me. His accuracy made me believe in his accuracy about other things in his book and was impressive.