Nov. 20, 2012— -- A convicted serial killer currently on death row killed O.J. Simpson's ex-wife Nicole Brown Simpson and her friend Ron Goldman, a new documentary claims.
"My Brother the Serial Killer" claims Glen Rogers was behind the 1994 murders that made nationwide headlines. The documentary, which airs Nov. 21 on Investigation Discovery, includes a candid interview with Rogers' brother, Clay.
"I'm absolutely certain that my brother killed Nicole Simpson and Ron Goldman," Clay Rogers told the filmmakers.
Glen Rogers was arrested six weeks after Simpson, the famous football player and Brown's ex-husband, was acquitted of the murders. Police claimed Rogers went on a nationwide killing spree, allegedly murdering more than 70 people.
Receipts show that Rogers was working as a housepainter in Los Angeles at the time of the murders, according to the documentary. In the weeks before the Brown and Goldman were killed, Rogers told his brother and sister he was hanging around with Brown and said she was rich and he was going to "take her down."
According to the documentary, Rogers later told a criminal profiler that Simpson had hired him to steal back a pair of expensive earrings from Brown. Simpson allegedly told Rogers that "you have to kill the [expletive]"
Rogers also provided a "detailed account" of the murder to criminal profiler Anthony Meoli, according to the documentary. Rogers drew a picture of the knife he claims to have used, which matches the forensic description of the blade.
"There has been no investigation of Glen Rogers. The fact that he is confessing now surely means that the authorities should open the books on it," said filmmaker David Monaghan.
Goldman's father, Fred, does not believe the documentary.
"The fact of the acquittal at the hands of the jury will never wash away this murder from the hands of O.J. Simpson, not matter how many Glen Rogers pop up on the media radar screen," Goldman told TMZ.
While the new documentary is bound to generate attention on a case that gripped the nation, experts say it will unlikely change many minds about who did it.
"The filmmaker has created a compelling case here. The problem is, it doesn't deal with the enormous amount of evidence pointing at O.J. Simpson," said ABC News legal analyst Dan Abrams.
Simpson is currently serving up to 33 years in Nevada state prison after a group of men say the former football star robbed them of sports memorabilia at a hotel in 2007.
Rogers was captured in 1995 after his family tipped off police about his location. He has received death sentences in California and Florida and currently awaiting execution on Florida's death row.
Rogers was not interviewed for the documentary.
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