Joshua Walters was bound over for trial following a preliminary hearing Thursday in Dodge County Circuit Court. No arraignment date was set.
Walters was charged in April with assisted suicide in the death of 20-year-old Adam C. Peterson. Peterson, a college dropout, was serving a life sentence for the 2008 stabbing death of Madison resident Joel Marino.
Peterson, a native of Sillwater, Minn., was found hanging from a bed sheet tied to his bunk bed on the night of Jan. 10.
If convicted, Walters faces up to 10 years in prison and a fine of up to $10,000.