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.

LOS ANGELES – 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.

Read more at Fox News