Here's what RFK Jr. Claims about his uncle:
The Warren Commission was run by Allen Dulles who was a head of the CIA that my uncle fired, and then insinuated himself onto the Warren Commission, and essentially ran the Warren Commission and kept this evidence from the Warren commissioners.
By the way, when Congress, 10 years later, investigated the crime with much more evidence than the Warren Commission had at its disposal, Congress found that, yeah, it was a plot, it was a conspiracy. There were multiple people involved and most the people in that investigation believe that it was the CIA that was behind it, because the evidence was so overwhelming to them.