The Investigation Discovery documentary “My Brother the Serial Killer,” which examines claims that serial killer Glen Rogers, not O.J. Simpson, brutally stabbed to death Nicole Brown Simpson and Ron Goldman, has infuriated the families of the the deceased.

“The overwhelming evidence at the criminal trial proved that one and only person murdered Nicole Brown Simpson and Ronald Goldman. That person is O.J. Simpson and not Glen Rogers. The fact that O.J. Simpson was acquitted was a stain on the American criminal justice system. That stain will blemish our court system for a thousand years,” an attorney for the Goldman family told FOX411. “The Discovery Channel can pack a hundred thousand screaming Glen Rogers’s in the Los Angeles Coliseum. They can confess in unison from here until the cow comes home. But nothing, and I mean nothing, would absolve O.J. from the unrequited crimes that he committed when he took the lives these two people.”

In a statement, Ron’s sister Kim Goldman said she was “appalled at the level of irresponsibility demonstrated by the network and the producers of this so-called documentary,” and that they were never notified that the main character had confessed to her brother’s death.

Nicole Brown’s sister Denise too has reportedly dismissed the explosive revelations in the new documentary, saying Rogers is not as “famous as he wants to be” and that “he should have come forward years ago if fame is what he’s seeking.”

Invesigation Discovery rep Alison Russo told us: "Our hearts go out to the families and friends of all of Glen Rogers' victims. Victims of crime deserve nothing less than for the truth, and the whole truth to come out."

More On This...

Russo added that "Reports that say this film exonerates O.J. Simpson are not true. If anything, Rogers' story implicates O.J. Simpson in a more clear and meaningful way."

In the film, Rogers said Simpson paid him to break into his ex-wife's house to steal a $20,000 pair of earrings. Rogers claims Simpson also told him to kill “the bitch” if necessary.

Meanwhile, at least one person couldn't be happier with the film.

“O.J. absolutely loves it,” a source told FOX411’s Pop Tarts column. “He loves that the documentary is out and the idea that people are talking about him but he’s not the one being blamed. Typical O.J. stuff.”

We’re also told that Simpson, currently serving out a nine to 33 year sentence in Nevada State Prison for with multiple felony counts including kidnapping, assault, robbery, and using a deadly weapon, was sent a preview screener of “My Brother the Serial Killer” about a month ago, but was prohibited from watching it.

“Prison officials typically do not allow inmates to watch things classified as a ‘special event,’” explained Wendy Feldman, legal expert and founder of Custodial Coaching. “The television programs and movies that are watched usually happen in the common area and the inmates vote on what they want to watch… O.J. doesn’t get any special treatment because he is a celebrity."

The Nevada State Prison did not respond to a comment request.

The controversial Investigation Discovery documentary, “My Brother the Serial Killer,” which aired Wednesday, suggests that death-row inmate Glen Rogers is the one who murdered Brown and her friend, Ron Goldman. Rogers, now 50 and behind bars in the state of Florida, was a carnival worker who was convicted in 1997 of killing a woman in a Tampa motel room and is a suspect in homicides in multiple states including Mississippi, Louisiana and Kentucky. Many of his alleged victims were women with who met at bars across the country, and later stabbed to death – and according to the documentary, Rogers met Brown the year of her death while in Southern California.

O.J. Simpson was acquitted of his ex-wife’s murder in 1995 in what was dubbed the “trial of the century.” But in 2008, Simpson was convicted at trial for heading up a group of armed friends in a September 2007 dispute with sports memorabilia dealers in a Las Vegas hotel room.

Simpson’s lawyer did not respond to a request for comment.

What do you think of the Discovery documentary? Go to the FOX411 Facebook Page to sound off.

Danielle Jones-Wesley contributed to this report.