NEW INFORMATION: 'Making a Murderer' attorney seeks more evidence testing

The attorney for a Wisconsin inmate who was the subject of the hit Netflix documentary series "Making a Murderer" says she plans to seek further evidence testing that she believes will show he's innocent.

Prosecutors believe Steven Avery killed Teresa Halbach in his family's Manitowoc County salvage yard in 2005. A jury convicted him in 2007 and he was sentenced to life.

Avery insists authorities framed him.

His attorney, Kathleen Zellner, asked the 2nd District Court of Appeals on Friday to suspend his latest appeal because she plans to file another request seeking more testing on evidence that could overturn his conviction. She didn't elaborate.

She wrote she would file the testing request Friday but as of mid-day hadn't filed anything.

MANITOWOC, Wis. (CNN) -- The clock is ticking for Steven Avery's attorney to file new documents in his appeal.

Attorney Kathleen Zellner plans to request access to DNA evidence from the scene. She also plans to order new testing that wasn't available during Avery's initial trial. Her deadline is Monday. The case, made popular by the Netflix series "Making a Murderer," drew a lot of supporters. Many stood outside of a Manitowoc courtroom Thursday, hoping to see Zellner.

"We're going to be finding out something soon and I just try to be optimistic about that," Avery supporter Tracie Strunsee said. "I have trust in her; she's an amazing attorney. She knows what she's doing, so I have trust in her. It would be nice if we could find out something now, but we waited this long. If we have to wait a little bit longer, it's not that big of a deal."

Avery and his nephew, Brendan Dassey, were both convicted in 2007 for the murder of freelance photographer Teresa Halbach. Dassey's conviction was recently overturned by a U.S. magistrate.

MILWAUKEE, Wis. (WEAU) -- Less than two weeks after a federal judge overturned Brendan Dassey's conviction, Steven Avery's attorney has announced plans to file a new motion that, she hopes, will win her client a new trial.

Chicago-based defense lawyer Kathleen Zellner is requesting access to DNA evidence used to prosecute Avery. She is also requesting new testing be done that was not available during the original trial. Both Dassey and Avery were convicted in the murder of Theresa Halbach. The case was featured in the Netflix series "Making a Murderer."

The Manitowoc County Court Clerk confirmed to Milwaukee affiliate WTMJ-TV that a motion by Zellner's office is being "processed" and "finalized," but has not been officially submitted.