'Making a Murderer' subject Brendan Dassey's overturned conviction appealed by state

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Wisconsin is appealing the overturned conviction of "Making a Murderer" subject Brendan Dassey in relation to the murder of Teresa Halbach.

"We believe the magistrate judge's decision that Brendan Dassey's confession was coerced by investigators, and that no reasonable court could have concluded otherwise, is wrong on the facts and wrong on the law," said Attorney General Brad Schimel. "Two state courts carefully examined the evidence and properly concluded that Brendan Dassey's confession to sexually assaulting and murdering Teresa Halbach with his uncle, Steven Avery, was voluntary, and the investigators did not use constitutionally impermissible tactics."

Dassey's confession, and the murder of Halbach in general, returned to the spotlight thanks to Netflix's docu series "Making a Murderer." On August 12, federal magistrate judge William E. Duffin granted Dassey's writ for a petition of habeas corpus. Duffin wrote that the "misconduct" of Dassey's court-appointed attorney Len Kachinsky was "indefensible."

"The Halbach family has been notified of the appeal and fully supports the State's decision to seek justice on behalf of their daughter" Schimel added in his statement. The Attorney General filed the notice of said appeal in the United States District Court for the Eastern District of Wisconsin on Friday.

See more from "Making a Murderer" in the gallery below!

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Steven Avery's trial from "Making a Murderer"
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Steven Avery's trial from "Making a Murderer"
Steven Avery looks around a courtroom in the Calumet County Courthouse before the verdict was read in his trial, March 18, 2007, in Chilton, Wis. Avery was found guilty of first-degree intentional homicide in the murder of photographer Teresa Halbach. Avery, who spent 18 years in prison for a rape he didn't commit only to be convicted of committing a murder 3½ years after he left prison, said Tuesday, April 17, 2007, he is confident he will again be exonerated. (AP Photo/Jeffrey Phelps, Pool, File)
This March 2007 file photo shows Calumet County District Attorney Kenneth Kratz giving his closing argument in the Steven Avery trial in the courtroom in Chilton, Wis. Police say Kratz sent repeated text messages trying to spark an affair with a domestic abuse victim while he was prosecuting her ex-boyfriend. (AP Photo/Morry Gash, File)
Karen Halbach, mother of Teresa Halbach, listens Tuesday, April 24, 2007, to testimony in the Brendan Dassey trial in Manitowoc, Wis. Dassey, 17, is charged with first-degree intentional homicide, mutilating a corpse and first-degree sexual assault in the death of 25-year-old Teresa Halbach on Oct. 31, 2005. His uncle, Steven Avery, 44, was convicted last month in Halbach's murder and is to be sentenced to mandatory life in prison in June. (AP Photo/Bruce Halmo, Pool)
Karen Halbach talks to the jury about her slain daughter, Teresa Halbach, during the trial of Brendan Dassey, Monday, April 16, 2007, at the Manitowoc County Courthouse in Manitowoc, Wis. Dassey, 17, is charged with first-degree intentional homicide, mutilating a corpse and first-degree sexual assault in the death of 25-year-old Teresa Halbach on Oct. 31, 2005. His uncle, Steven Avery, 44, was found guilty of her murder last month. (AP Photo/Dan Powers, Pool)
Tom Halbach, father of Teresa Halbach waits in the courtroom for the verdict in the Steven Avery Trial Calumet County Courthouse Sunday, March 18, 2007, in Chilton, Wis. Avery was found guilty of first degree intentional homicide in the murder of photographer Teresa Halbach, 25, on Oct. 31, 2005 near the family's auto salvage lot in rural Manitowoc County. (AP Photo/Patrick Ferron, Pool)
Sgt. Mark Wiegert with the Calumet Sheriff Department, testifies during Steven Avery's trial on Wednesday, March 7, 2007, at the Calumet County Courthouse in Chilton, Wis. Avery, 44, and his 17-year-old nephew are accused of murdering 25-year-old photographer Teresa Halbach and burning her body on Halloween 2005. The nephew, Brendan Dassey, is scheduled for trial in April. (AP Photo/Evan Siegle, Pool)
Steven Avery's attorney Dean Strang points to a photo showing a CD case that contained blood stains in Teresa Halbach's vehicle while questioning Nick Stahlke, a blood spatter expert with the Wisconsin Crime Laboratory during testimony in Avery's murder trial Tuesday, Feb. 27, 2007, in Chilton, Wis. Avery is accused of killing Teresa Halbach, 25, after she went to the family's rural salvage lot to photograph a minivan they had for sale. (AP Photo/Bruce Halmo, Pool)
Blaine Dassey, Steven Avery's nephew and the brother of Brendan Dassey testifies Tuesday, Feb. 27, 2007, during Avery's murder trial in Chilton, Wis. Avery is accused of killing Teresa Halbach, 25, after she went to the family's rural salvage lot to photograph a minivan they had for sale. (AP Photo/Bruce Halmo, Pool)
Manitowoc County Circuit Judge Patrick Willis listens to Steven Avery's attorney Dean Strang argue a point during Avery's murder trial Tuesday, Feb. 27, 2007, in Chilton, Wis. Avery is accused, along with his 17-year-old nephew, of killing Teresa Halbach, 25, after she went to the family's rural salvage lot to photograph a minivan they had for sale. (AP Photo/Bruce Halmo, Pool)
Marc LeBeau, unit chief of the FBI's chemistry unit, testifies in the Steven Avery homicide trial Monday, March 5, 2007, at the Calumet County Courthouse in Chilton, Wis. Avery is accused, along with his 17-year-old nephew, of killing Teresa Halbach, 25, after she went to the family's rural salvage lot to photograph a minivan they had for sale. (AP Photo/Mike De Sisti, Pool)
Steven Avery, left, exits the courtroom after closing arguments in his trial, Thursday, March 15, 2007 at the Calumet County Courthouse in Chilton, Wis. Avery is accused, along with his 17-year-old nephew, of killing Teresa Halbach, 25, after she went to the family's rural salvage lot to photograph a minivan they had for sale. (AP Photo/Dwight Nale, Pool)
Calumet County District Attorney Ken Kratz answers a question after the murder trial of Steven Avery Sunday, March 18, 2007, in Chilton, Wis. Avery was found guilty of first degree intentional homicide in the murder of photographer Teresa Halbach, 25, on Oct. 31, 2005 near the family's auto salvage lot in rural Manitowoc County. (AP Photo/Jeff Phelps, Pool)
The hands of Tom Halbach, father of Teresa Halbach, are shown as he waits for the verdict in the Steven Avery murder trial in the Calumet County Courthouse Sunday, March 18, 2007, in Chilton, Wis. Avery was found guilty of first degree intentional homicide in the murder of photographer Teresa Halbach, 25, on Oct. 31, 2005 near the family's auto salvage lot in rural Manitowoc County. (AP Photo/Patrick Ferron, Pool)
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