“We are not surprised since the Wisconsin Supreme Court only grants 1-2% of petitions for review. Mr. Avery has many options including proceeding to the U.S Supreme Court, and then federal district," Avery's attorney, Kathleen Zellner, said in a statement. "Since the appellate court only ruled on 50% of the issues raised we will be filing a new petition with the circuit court at the appropriate time.”
The case gained widespread attention in 2015 after Netflix aired "Making a Murderer," a series whose creators raised questions about the convictions. Those who worked on the cases accused the filmmakers of leaving out key pieces of evidence and presenting a biased view of what happened. The filmmakers defended their work and supported calls to set Avery and Dassey free.
Dassey was 16 when he confessed to detectives that he helped his uncle rape and kill Halbach. A judge threw out the confession in 2016, ruling it was coerced by investigators using deceptive tactics. That ruling was later overturned by a federal appeals court and the U.S. Supreme Court declined to hear his case.