We have hit the daily double here:

First, Marilyn Monroe's Death was faked (12-page PDF)

Second, the author doesn't document it, but we find out in this paper (The Tate Murders were a False Flag, 96-page PDF) that:

[RFK] was also killed in very mysterious circumstances. His death was filmed, the wounds and gunshots never matched, the photos were faked, the “murderer” was a patsy, and we saw no body.

You can look at the famous assassination photos and see that they're fake/staged yourself. And the tie to the (fake) Manson murders is this forgotten trivia:

Another “coincidence”: Bobby Kennedy had dinner at a Malibu beach house on June 5, 1968, before being driven to the Ambassador Hotel, where he was allegedly shot and killed. Sharon Tate and Roman Polanski were also present at that dinner party in Malibu.