Robert Kardashian knew that OJ Simpson was guilty, Caitlyn Jenner claims in her new book, but represented him as a "f*** you" to ex-wife, Kris.
Kardashian, who died in 2003, is father to reality TV stars, Kourtney, Kim, Rob and Khloe.
He was part of Simpson's legal team in 1995 when he was tried for the murders of his wife Nicole Brown and her friend, Ron Goldman.
Brown was one of Kris Jenner's best friends, while Simpson and Kardashian were also friends.
Jenner, who as Bruce was married to Kardashian's ex-wife, Kris, has revealed that not even the lawyer believed in Simpson's innocence.