A prison inmate has reportedly confessed to murdering the victim featured in hit Netflix documentary series Making a Murderer.
Steven Avery, 57, is serving life in prison for the murder of Teresa Halbach, 25, in rural Wisconsin in 2005.
Ms Halbach’s charred remains were found on Avery’s land.
His nephew Brendan Dassey, 29, was also convicted of helping him. Both men maintain their innocence.
The investigation into Ms Halbach’s murder was the subject of Netflix’s doco Making a Murderer.
Shawn Rech, who directed the series, told Newsweek his crew have been given a confession from a “notable” convicted murderer serving time in Wisconsin.
Rech told the publication he’s yet to confirm whether it’s legitimate but added the confession did not come from Avery or Dassey.
The person who confessed hasn’t been identified but is said to be a man.
Opinions are divided on the guilt of both men.
Dassey’s case went to the Supreme Court for appeal in June last year.
The prosecution's case against Dassey rested entirely on a highly controversial police interrogation of the adolescent - a young man of limited intellect - and on his eventual confession.
He was 16 at the time.
As cameras rolled, Dassey was questioned for hours, with no lawyer present, by investigators who used questionable tactics to persuade the young man to provide incriminating testimony against himself and his uncle.
However, the court ruled against hearing the case.
In 2016, a federal judge in Chicago overturned the conviction of Dassey. A three-judge panel later upheld that ruling, finding that the young man's confession had been coerced.
But in December 2017, the 7th US Circuit Court of Appeals sided with the state of Wisconsin, which has argued forcibly against Dassey's liberation, calling him a "serious threat to public safety”.
Avery’s lawyer Kathleen Zellner filed a 1200-page motion to overturn his conviction in 2017.
The Wisconsin Department of Justice labelled it “ridiculous”.
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