I think Jack Ruby is a key too...Who was he? Where was he from? He was from Chicago and was linked up with Lenny Patrick. He had the connections with the cops in Dallas to get into the police station and then killed Oswald before he could talk. That scenario is as old as the hills in Sicily. I don't think Oswald even pulled the trigger or knew much of anything other than he realized afterwatd that he was going to be the patsy as he stated