State crime lab analyzing ‘Making a Murder’ suspect’s blood evidence

(Courtesy: Netflix)

MADISON, Wis. (WBAY) – The Wisconsin State Crime Lab in Madison is analyzing forensic evidence used to convict “Making a Murderer” subject Steven Avery.

Avery and his nephew Brendan Dassey were found guilty in the 2005 death of freelance photographer Teresa Halbach in Manitowoc County. Dassey’s conviction was recently overturned, but the state is appealing the judge’s ruling. Avery is also appealing his conviction.

The laboratory is under the direction of Wisconsin Attorney General Brad Schimel, the same man arguing to make sure both Avery and Dassey stay in prison. However, Schimel says that will not impact the forensic testing being done in Avery’s case.

“You can count on, as members of the public, that the crime lab will do this objectively and thoroughly,” he told ABC affiliate WKOW-TV in Madison. “And that’s what we’re committed to do. And they will come and do it with, endeavoring to find whatever evidence is available.”

Eight pieces of evidence — including swabs of blood stains, blood flakes and a car key — will be subject to testing. Most of it is from Halbach’s SUV found on Avery’s Salvage property in 2005. The evidence was not available when Avery was convicted of murdering Halbach in 2007.

Avery has argued that he was framed by the Manitowoc County Sheriff’s Office. His attorney, Kathleen Zellner, tweeted earlier this week that “experts experiments confirm [Avery’s] trial attorneys correct about blood being planted but incorrect about how it was done.”

Avery’s attorneys say the crime lab will perform the most comprehensive, thorough and advanced forensic testing ever requested by a criminal defendant in the state of Wisconsin.

Zellner hinted that she might visit Wisconsin on Thursday to get evidence for tests.

Schimel says he knows everything about the Avery case and can’t imagine the tests will produce any new results.

Meanwhile, attorneys for Dassey have filed a brief with a federal appeals court asking that their client’s conviction remain overturned. CLICK HERE to read the document and to learn more about their argument. provides commenting to allow for constructive discussion on the stories we cover. In order to comment here, you acknowledge you have read and agreed to our Terms of Service. Commenters who violate these terms, including use of vulgar language or racial slurs, will be banned. Please be respectful of the opinions of others and keep the conversation on topic and civil. If you see an inappropriate comment, please flag it for our moderators to review.

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