Steven Avery's lawyer has revealed that she has new evidence that could see him walk free from prison.

Kathleen Zellner said that she will be presenting a 22,000 page document to the higher court next week detailing the reasons why her client should be released. Avery was sentenced to life in prison in 2007 for the murder of Teresa Halbach. Prior to this, he served 18 years of a 20 year sentence after he was wrongfully convicted of sexual assault and attempted murder. He filed a lawsuit against Manitowoc County following his release, only to be charged with the murder of Halbach soon after. Avery's case has been widely documented due to the worldwide attention it received on Netflix's Making a Murderer.  The series' second second season focused on Avery's new lawyer, Zellner, and her promise to do everything in her power to see her client walk free from prison. Zellner told OK Magazine that she wasn't hoping for a new trial, but a straight release from prison. “My goal is to not just to find the constitutional violation to get Steven Avery a new trial, because many people are convicted again in their second trial,” she said. ”I am trying to get the evidence to what I believe is the truth of what happened, so that there won’t be another trial.” Earlier tonight, Zellner announced on Twitter that leading DNA expert Dr Richard Selden was willing to test bones found in a gravel pit with a new DNA testing ID. Zellner said that if this testing is allowed, she believes that the bones will belong to Halbach therefore proving that she was murdered in the gravel pit and that the bones were then planted on Avery's premises. https://twitter.com/ZellnerLaw/status/1074760248198656001 Zellner said she and her team plan to present an alternate version of events surrounding Halbach's murder, creating a credible case for reasonable doubt. She went on:

“Someone else knows who committed this murder, and we are already getting tips about that. "I believe – it’s happened on several of my cases – that someone will come forward and say ‘I know who committed the murder, they told me they committed the murder’. That’s still in play.”

Zellner will present her findings next week.