The US supreme court is declining to weigh in on the case of a teenager convicted of rape and murder which was featured in the Netflix series Making A Murderer.

The court's decision not to take the case leaves in place a lower court ruling against Brendan Dassey.

Dassey was 16 years old when he confessed to Wisconsin authorities that he'd joined his uncle in raping and murdering photographer Teresa Halbach before burning her body in a bonfire in 2005.

His attorneys said he is borderline intellectually disabled and was pressured into a false confession. They wanted his confession thrown out and a new trial ordered.

Dassey's attorneys can still try to get him a new trial but they would have to convince a judge that newly discovered evidence warrants one.