O.J. Simpson's former sports agent claims the sports star confessed to killing his ex-wife, and he helped him cheat justice, in a new tell-all book.

In "How I Helped O.J. Get Away With Murder," Mike Gilbert alleges he counselled Simpson during his murder trial by advising him to take arthritis medicine that would bloat his hands so they wouldn't fit the infamous leather gloves linked to Nicole Brown Simpson and her friend Ron Goldman's 1994 slayings.

Gilbert claims Simpson then confessed to the killing while high on marijuana, after he was acquitted.

His book quotes the ex-American footballer revealing Brown Simpson was killed with a knife she opened the door to him carrying: "If she hadn't opened that door with a knife in her hand ... she'd still be alive."

Gilbert writes, "Nothing more needed to be said. O.J. had confessed to me. There's no doubt in my mind."

Simpson has dismissed the book's claims; his lawyer Yale Galanter describing the author as, "A delusional drug addict who needs money. He's fallen on very hard times. He is in trouble with the IRS."

He adds, "I've talked to O.J. about it. This stuff not only didn't occur but it's not factually supported by the evidence."

(This news article provided by World Entertainment News Network)