So, if not Sirhan, then who killed RFK? Well, several witnesses saw a security guard who was standing behind Kennedy draw his gun, and one witness even said that he fired it. This was a fellow named Thane Eugene Cesar. He was a plumber by trade, who’d been hired part-time by Ace Security less than a week before the assassination, his assignment being to guard the pantry that night. One of Cesar’s first statements to the police was that he’d been holding Kennedy’s arm when “they” shot him. Not “he,” but “they.” He said when he saw Sirhan’s gun, he reached for his own. But the LAPD never asked to see his gun, nor even asked him what kind it was.  [Watch Conspiracy Theory with Jesse Ventura on truTV]

(Time & Life Pictures/Getty Images)Years later, he passed a polygraph overseen by author Dan Moldea, who called Cesar “an innocent bystander caught in the crossfire of history.” Well, maybe he was. Or maybe not. Acoustics expert Van Praag did tests on an H&R 922 pistol of the type that Cesar had on him, and concluded that an H&R 922 had been fired at the same time as Sirhan’s.  Then, too, besides Sirhan and Cesar, another man with a gun was mentioned by several more witnesses. Conceivably, that person could have gotten in between Kennedy and the security guard to fire the fatal shot, as RFK was falling back from Sirhan.