John Ferak

USA TODAY NETWORK-Wisconsin

Eight months ago, suburban Chicago attorney Kathleen Zellner turned into an international celebrity by capitalizing on the "Making a Murderer" docu-series on Netflix.

"The Zellner Law Firm is looking forward to adding Mr. Avery to its long list of wrongful convictions," Zellner declared in a Jan. 8 press release.

Today, Avery, 54, remains at the state prison in Waupun, serving a life term in connection with the 2005 murder of Teresa Halbach..

Zellner is up against a Monday deadline to file legal briefs to overturn Avery's conviction.

The new court filing for Avery comes on the heels of the Aug. 12 decision by a federal judge in Milwaukee overturning the conviction of Brendan Dassey, Avery's nephew, who was found guilty in a separate 2007 trial. The judge determined that Dassey's confession was involuntary because of improper interrogation methods by prosecution investigators.

Wisconsin Attorney General Brad Schimel is deciding whether to retry Dassey.

Fans of the "Making a Murderer" series say Zellner has set extraordinarily high expectations for those who believe in Avery's innocence.

"If she didn't have a bombshell whenever she files, it would be a disappointment considering her aggressive tweets on social media," said Rich Donovan, a New Jersey resident who has closely monitored Avery's case.

Donovan added: "I think her primary focus is on planting of evidence and I think it's about the investigation. I don't expect to hear a suspect named in her filings. I don't believe she has narrowed down a specific person yet."

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Since she took the world by storm on Twitter back in January. Zellner continues to declare that Avery was victimized by a crooked police investigation.

To gauge the direction of Zellner's appeal, USA TODAY NETWORK-Wisconsin reviewed Zellner's social media posts, along with last week's interview with The New York Times.

"There is evidence that already exists in the case that points to a different location and a different suspect," Zellner told the Times. "We've got a combination of forensic evidence and a tip from somebody that we've interviewed multiple times that we think is credible."

The Times also quoted Zellner as saying, "I've never seen a more graphic, compelling illustration of a crime scene that was fabricated."

Here's a look at 20 of Zellner's social media posts that may provide insight into where the appeal is headed:

1. "Culprit had to remove his own DNA from key so Teresa Halbach's removed in process. Rub key on Avery's clothes for skin cells. Presto."

2. "Third visit to Waupun prison. Steven Avery thrilled about chance of new forensic tests like innocent men always are."

3. "The .22-caliber bullet recovered from Avery's garage did not exit Halbach's head. State expert failed to testify bullet exited. That bullet was driven to the scene."

4. "One thing perpetrators and evidence planters have in common is leaving signatures at the crime scene. Science always transcribes."

5. "That special Toyota RAV4 key only absorbs DNA of plaintiff (Avery) in civil rights suit against Manitowoc County not the owner's. Magic."

6. "Police reports: Only Steven Avery was a suspect, but big red flags on others. Must have to do with big green dollars."

7. "Tunnel vision clear in Teresa Halbach case. No DNA taken except from Avery family. No need to take DNA from others when it's planted."

8. "Teresa Halbach's throat was cut (leaving blood), Her head was shot (leaving blood spatter), but her RAV4 has her blood. So she was put in her vehicle and driven 20 feet to Avery's burn pit?"

10. "Framing Steven Avery twice results in real rapist and murderer never being charged. Who is being served and protected except the Manitowoc County Sheriff's Department?"

11. "How long will the witnesses who lied at the trial be protected by those who know the truth?"

12. "Fact: One person actually gave cops a fake name to access the Avery Salvage Yard property to help in the Teresa Halbach search."

13. "Must prove Steven Avery actually innocent without any doubt. Must be airtight and it will be."

14. "Easy part: planting evidence. Hard part: avoiding detection 10-plus years later."

15. "Tips are great but don't quit your day jobs because scientists are going to solve this. Everyday Steven Avery moves closer to freedom."

16. "Sixth trip to Waupun. Steven Avery to undergo the most advanced scientific testing in the world to show his innocence."

17. "All day retracing Teresa Halbach's steps. No doubt she left Avery property alive. All roads lead to one door and it's not Steven Avery's."

18. "So it's clear, we are examining the prosecutions violations first, not the defense attorneys (Dean Stang and Jerry Buting) performance."

19. "Planted evidence in Steven Avery's trailer, burn pit, burn barrel, garage and in nephew Brendan Dassey's head. Science will make it right and convict the guilty."

20. "Brendan's opinion — federal magistrate William Duffin's ruling overturning Dassey's conviction — shows the cops made up the crime story. Steven's will show cops made up crime scene evidence."

John Ferak of USA TODAY NETWORK-Wisconsin: 920-993-7115 or jferak@gannett.com; on Twitter @johnferak. Tom Kertscher of the Milwaukee Journal Sentinel contributed to this report.