An inmate at a Wisconsin prison has allegedly confessed to the murder of Teresa Halbach - the woman who Steven Avery was convicted of killing.
The Halbach case and subsequent trial and conviction of Steven Avery and his nephew Brendan Dassey was the centre of popular Netflix documentary Making A Murder.
But now an inmate is reported to have confessed to the crime while speaking to producers of a new unaffiliated documentary titled Convicting A Murderer.
Director Shawn Rech told Newsweek: "We haven't confirmed the legitimacy of the confession.
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"But seeing as it was given by a notable convicted murderer from Wisconsin, we feel responsible to deliver any and all possible evidence to law enforcement and legal teams."
He also confirmed to the news outlet that the confession didn't come from Avery or Dassey.
The filmmakers say they have now handed the taped interview over to cops for them to investigate.
Avery, 57, and Dassey, 29, have both spent more than a decade in jail for the murder of 25-year-old Halbach. Both men have claimed they are innocent.
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The upcoming documentary is expected to air on an as-yet-undetermined streaming service sometime in 2020, and Rech claims it will feature a lot of information that wasn't covered in the Netflix series.
He told Newsweek: "After watching the series [Making A Murderer] I was angry with law enforcement, and even embarrassed as an American because of what appeared to have happened to Steven and Brendan.
"But after doing a little bit of follow-up research I learned that not only did I not have the whole story, but I was misled by the series. And I'm saying this as a fan, not as an established documentary filmmaker."
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The news of a 'new confession' comes just weeks after Avery's lawyer Kathleen Zellner announced a $100,000 (£80,900) reward to anyone who comes forward with information about the 'real killer of Theresa Halbach'.
In a tweet the lawyer wrote: "We are pleased to announce that a reward of $100,000 is being offered, by a concerned citizen, for the arrest and conviction of the real killer of Teresa Halbach. All tips should be called in to (630) 847-3733."
It's not yet confirmed whether a third season of Making a Murderer will be released, but Zellner continues to dig up evidence that might help the Steven Avery's case.
Featured Image Credit: Netflix
Topics: TV and Film, US News, crime