The show prompted fans to call for the reopening of the case to exonerate Avery and Dassey

Steven Avery's Lawyer Says New Making a Murderer Episodes Will 'Show Steven Is Innocent and Was Framed'

Kathleen Zellner, the lawyer for Making a Murderer subject Steven Avery, is optimistic that forthcoming new episodes will portray her client in a positive light, she tells PEOPLE exclusively.

“The new Netflix episodes will reveal all of the new evidence we have developed to show Steven is innocent and was framed for a second time,” Zellner says in a statement to PEOPLE.

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On Tuesday, Zellner tweeted a message to fans of the true crime docu-series: “The best is yet to come.”

On Monday, Netflix announced it was producing more episodes of the Emmy-nominated show about the 2005 murder of young photographer Teresa Halbach and the controversial convictions of Steven Avery and his nephew, Brandon Dassey, for the crime.

After the show was released, Avery wrote a letter to his supporters, reading: “To My Supporters: I want Every Forensic Test Possible Done B/c I am Innocent.”

After the Netflix’s announcement, Dassey’s lawyer, Laura N. Nirider, told PEOPLE that her client is “hopeful” he will be given a new trial.

“What gives him hope is the letters he receives from people all around the world,” Nirider said. “Those letters and his family are the reasons he gets up nowadays. He is hopeful and grateful.”

Nirider added, “The whole world saw what happened to him over the course of season one. People are rightfully up in arms about what happened to him, and we are grateful a spotlight will continue to be shown on his case.”

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While there is no set date for when the new episodes will air, it will focus on “the high-stakes post-conviction process, as well as the emotional toll the process takes on all involved,” Netflix’s press release stated.