Steven Avery, whose case was documented on “Making a Murderer” had filed a motion for new trial, alleging new evidence that would support granting him a new trial. The trial court denied the motion without a hearing, indicating that Avery’s attorney Katherine Zellner, had not met the legal standard for that type of motion in Wisconsin. Currently, that ruling is being appealed, but it’s fairly early in the appellate process: Zellner has not filed her brief yet.
Brendan Dassey, the young cousin of Avery, is still fighting to get his verdict overturned. He had gone through the State appeals process, when he then got a positive ruling from a Federal judge, finding his confession was illegally obtained and dismissing the trial result. However, a Federal Appellate court overturned that ruling, reinstating his conviction. He is now petitioning to the U.S. Supreme Court. The SCOTUS only takes a relatively few cases each year, and Wisconsin will likely be filing a brief arguing that there is no issue that needs to be addressed by SCOTUS. If the Supreme Court does not hear the case, Dassey could end up filing for a new trial as Avery has done.