A timeline of events in the Brendan Dassey case

The young prisoner featured in Netflix's controversial documentary "Making a Murderer" was coerced into confessing to a 2005 killing, and his conviction should be overturned, according to a federal appeals court decisionthat could set up the case to go to the Supreme Court. His confession formed the basis of much of the prosecution's case against his uncle, Steven Avery, who was convicted in a separate trial and sentenced to life.

On Thursday, a panel of three judges ruled against the United States prosecutors' appeal over the ruling that his confession was coerced.

June 22, 2017: A three-judge federal appeals panel rules that Dassey's confession was improperly obtained and he should be retried or released from prison.

The three-judge panel from the court of appeals ruled on Thursday that the lower court's decision was correct, almost a year after the original decision.

"We are evaluating the 2-1 decision from the court", said Johnny Koremenos, director of communications and public affairs for the Wisconsin Department of Justice. The case became an worldwide cause celebre following the release of Netflix docu-series "Making a Murderer".

"We look forward to working to secure his release from prison as soon as possible", they said.

When considered with "Dassey's age, intellectual deficits, and the absence of a supportive adult", he considered the confession coerced.

The death of Halbach and the conviction of Avery and Dassey placed Manitowoc County in the national spotlight.

His conviction was overturned in 2016 on the basis his confession, made as a 16-year-old, was coerced.

The ruling backed up the decision made by Federal Magistrate William Duffin last summer, which stated that false promises were made in the interrogation process, and that these were a violation of Dassey's constitutional rights.

"THIS JUST IN", Dassey's attorney Steven Drizin tweeted on Thursday.

"While these tactics might not have overwhelmed a seasoned criminal or a 30-year-old with a law degree, they clearly overwhelmed a 16-year-old, socially avoidant, intellectually limited [youth] who had never been interrogated by the police before."
Dassey was 16 then and suffered from cognitive problems.

The ruling means Dassey could be released in the next 90 days. In November, the state Justice Department appealed Duffin's decision to the US Court of Appeals for the Seventh Circuit - blocking Dassey's release pending a hearing.

Steven Avery, seen in 2007, contends he was framed by police angry with his lawsuit for an earlier wrongful conviction for sexual assault.

Meanwhile a lawyer acting on behalf of Avery has called for a new trial, alleging Halbach may have been killed by her ex-boyfriend and not the man jailed for her death.