“What I don’t get is what the vendetta was all about.”
Bobby Kennedy was against the Vietnam War and publicly stated it could not be won militarily before he was killed. Bobby Kennedy was also against J. Edgar Hoover at the FBI. The CIA was obviously fully invested in perpetuating the Vietnam War.
Eisenhower warned the nation about the military industrial complex just as George Washington warned the nation about foreign alliances and entanglements in his Farewell address. Like his brother John, Robert Kennedy represented a threat to the military industrial complex.
There is a rumor that Aristotle Onasis was behind the shooting. Bobby was telling Jackie not to marry Onasis, perhaps threatening her if she did.