Oswald in the doorway: the blog of the Oswald Innocence Campaign, by Ralph Cinque

Jack Ruby requested a polygraph test. I think that that establishes beyond  any doubt, that he had no intention of lying. And he said in the test and passed in saying it that he did not know Oswald and did not see him before 11/22/63. That makes all the claims about Ruby knowing Oswald and conspiring with him completely and totally bogus.