MANKATO- November 9, 2012 -(KMKO) – A Mankato man was arrested on a parole violation and pled guilty to having fake pot. 27-year-old William Roalson faces a misdemeanor charge after he was a passenger in a DWI stop and was found with the synthetic cannabis called “Shaman.” He entered a guilty plea on Wednesday in Mankato, ordered to serve the one day in jail already served, and fined $77.