Nearly three months after the man convicted of fatally stabbing Joel Marino in his Madison home hung himself in prison, his cellmate has been charged with assisting in his suicide.
Joshua Walters, an inmate at the Dodge Correctional Institution, was charged Wednesday in the death of 20-year-old Adam Peterson. Peterson, who dropped out of UW-Madison several weeks before he killed Marino on Jan. 28, 2008, was serving a mandatory life sentence.