One of O.J. Simpson's former jailers in Northern Nevada is telling all in a self-published book.
Retired Correctional Officer Jeffrey Felix wrote the tell-all book, "Guarding the Juice: How O.J. Simpson Became My Prison BFF." He says for seven years, he was Simpson's closest confidante at the Lovelock Correctional Center.
Simpson is serving a 33-year sentence for kidnapping and armed robbery at the Palace Station hotel-casino in Las Vegas, in which he was convicted in 2008.
His 1990s murder trial is being highlighted on the current FX series, "The People v. O.J. Simpson: American Crime Story."
"OJ told me one time that only two people alive know who committed the Brentwood murders: him and Al Cowlings," Felix said. "Al Cowlings was the one that drove the white Bronco and Al Cowlings was OJ's best friend."
Felix said Simpson battles weight gain and arthritis behind bars but still lives a life of privilege.
Check out more of Felix's interview on Good Morning America Tuesday.