I stumbled/googled upon this PBS interview done in 1993 with a very respected attorney and law professor, G Robert Blakey. Blakey served as chief counsel to the 1977 House Select Committee on Assassinations, leading the investigation into the assassination of John F Kennedy. There's an addendum written by Blakey ten years later in 2003 outraged that there was now damning evidence that the CIA had obstructed the investigation.
Lee Harvey Oswald was not your average mixed up 24 year old ex-Marine. In the middle of the Cold War he defects to the Soviet Union. He becomes disillusioned with the Soviet brand of Communism so he returns to the USA with a Russian wife in tow and works shitty jobs, doesn't even have a car. Just 2 months before the assassination, he sets his sights on Cuba to further his Marxist dreams, he travels to Mexico City and visits the Cuban consul there, he gets rejected, he then shows up at the Soviet embassy in Mexico and for some unknown bizarre reason meets Valery Kostikov, a KGB agent stationed there, who belongs to the KGB's assassination unit. This isn't conspiracy theory, it's fact. Earlier in 1963, in the spring, he returns to New Orleans where he had grown up. It turns out that Oswald's uncle in New Orleans is an ex-boxer and fight promoter and bookie, under control of powerful Mob boss Carlos Marcello. The Congressional Committee invites a guy named Becker to testify, Becker testifies that he had a conversation with Marcello where Marcello expressed his desire to find a nut to kill the man behind Bobby Kennedy, his brother John, the President of the United States. The Committee finds Becker to be a credible witness. Years later the Mob boss of Tampa, Santo Trafficante, is facing serious surgery, and confides to his long time lawyer, that Marcello messed up, that 'we should have killed Bobby, not John'.
What 24 year old 'loner' just happens to have had meetings with KGB assassins and has a familial relationship connected to a Mafia boss whom a credible witness testifies was looking for a nut to kill the President?
Very compelling interview - worth a read if you're of the opinion Oswald acted alone.
http://www.pbs.org/wgbh/pages/frontl...robert-blakey/