Inmate Joshua Walters called out for help. His cellmate of three weeks, a 20-year-old convicted killer named Adam Peterson, was hanging from a noose made out of a bed sheet tied to their bunk bed. A note tucked in the waistband of Petersonâ??s pants apologized to the family of the stranger he had stabbed to death a year earlier. Peterson grew up in Minnesota and attended University of Wisconsin campuses in La Crosse and Madison before dropping out, developing a mental illness and committing murder.
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