Caitlyn Jenner has claimed that Robert Kardashian Sr. thought O.J. Simpson was guilty of the very murder he helped him get acquitted of.

Jenner made this revelation in her new memoir titled The Secrets of My Life. In it, she claims that the late lawyer, who sat on Simpson's legal team during the murder case, actually thought the former football star was guilty of killing his ex-wife, Nicole Brown Simpson and her friend, Ron Goldman.

RELATED: Khloé Kardashian says stress from OJ Simpson murder trial killed her father

The 67-year-old, formerly known as Bruce Jenner, recalled a conversation with Kardashian after O.J.'s civil trail in which Robert allegedly said, “I would’ve been OK with it if they had gotten him in the first trial.” Jenner also wrote that “The implication was obvious that he [Kardashian] believed O.J. was guilty.”

In her memoir, Jenner also gave her opinion on O.J. and calls him "the most narcissistic, egocentric, neediest a**hole in the world of sports I had ever seen, and I had seen a lot of them.”

As for what the rest of the family thought about who killed Nicole and Ron, Jenner said that they were a bit split as Kim and Kourtney believed that O.J. couldn't do something like that but Kris, however, felt that he was the killer.

Jenner agreed  with Kris' stance saying, “I believe he got away with two savage murders.”