On its face, the "official" explanation of the circumstances surrounding the death of former Attorney General Robert F. Kennedy is as simple as the Warren Commission Report on the assassination of John F. Kennedy. In both instances, so the story goes, "one lone nut" was responsible for the crime. There was no conspiracy.

Robert F. Kennedy's assassination in Los Angeles in 1968 came just after RFK (elected to the Senate from New York in 1964) had won the critical California Democratic presidential primary. This put the younger Kennedy in the lead for his party's presidential nomination and thus potentially in line to move into the White House following the general election.

It was in the ballroom of the Ambassador Hotel where RFK delivered his California victory speech to an assembled crowd of supporters. After concluding his speech, the triumphant Kennedy wanted to work his way through the crowd in the ballroom to make his exit from the hotel.
Image result for image of Frank Mankiewicz
However, according to one campaign volunteer who was on the scene, one of Kennedy's handlers repeatedly insisted that Kennedy exit through the hotel kitchen behind the ballroom. The handler who was so insistent that RFK exit through the kitchen was Frank Mankiewicz, who had started his career in the public relations business at the Los Angeles office of the Anti Defamation League (ADL) of B'nai B'rith, and who, as we saw in Chapter 17, handled publicity for Oliver Stone's JFK extravaganza. 766

It was there in that kitchen where Mankiewicz steered Senator Kennedy that a young Arab-American named Sirhan Sirhan was waiting. According to the late William Sullivan, longtime assistant FBI director, "We could never account for Sirhan's presence in the kitchen of the Ambassador Hotel."767 However, we now know why Bobby Kennedy left through the hotel kitchen, rather than the way he himself wanted to leave, although Mankiewicz has said that it was RFK's decision to go through the kitchen— against the former ADL man's wishes....

....Critics of JFK assassination conspiracy theories contend that a conspiracy so immense would require a vast number of people involved. In fact, the mechanics of initiating the conspiracy described in Final Judgment involved perhaps no more than 20 people. Most of those ultimately involved in the conspiracy were probably not even aware of the activities of the others who were involved. So then, let us name, for the record, those whom we believe had advance knowledge that John F. Kennedy was going to be killed on November 22, 1963. They are:
 Israeli Prime Minister David Ben-Gurion;
 Israeli Mossad assassinations chief Yitzhak Shamir;
 Permindex chief executive officer Louis M. Bloomfield;

 Mossad officer and Permindex banker Rabbi Tibor Rosenbaum;
 CIA Counterintelligence chief James J. Angleton;
 French intelligence officer Georges deLannurien;
 Crime Syndicate boss Meyer Lansky;
 The actual shooters in Dealey Plaza. Evidence strongly points toward French mercenary Michael Mertz as one of those gunmen. In any case, as we have seen, at least one assassin was contracted by the Mossad through disloyal elements in French intelligence, although it is probable that there were several assassination teams in place.
 CIA contract agent and longtime Mossad asset Frank Sturgis claimed to have played a part in the events in Dealey Plaza. His Cuban exile henchmen, Guillermo and Ignacio Novo, who were with Sturgis in Dallasalso played some role, although whether they were actual gunmen has yet to be determined.
https://exploringrealhistory.blogspot.com/2019/02/part-10final-judgmentheir-to-throne.html