Steven Avery has been moved from a maximum security prison to a medium security facility.
He was transferred Tuesday from Waupun to Fox Lake in Dodge County.
Avery is serving a life sentence for killing and raping 25-year-old photographer Teresa Halbach in 2005. The case gained international attention with the Netflix documentary series "Making a Murderer."
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Avery's 32-year-old nephew Brendan Dassey has spent about half his life in prison for his alleged crimes as Avery's co-defendant. Advocates have pushed for Dassey to be freed but the U.S. Supreme Court refused to hear his appeal earlier this year.