An 18-year-old Lake Chelan area man who authorities say started a fire that injured two Chelan County Sheriff's Office deputies has been sentenced to more than six years in prison. Deputies William Tuengel and Cyrus Bowthorpe suffered concussions last July after a livestock stable exploded while they were attempting to arrest Connor Leo Strange, according to Chelan County Superior Court documents. Strange pleaded guilty March 1 in Superior Court to one count of first-degree arson and two counts of second-degree assault. The Chelan County Prosecuting Attorney’s Office and Strange’s attorney recommended an exceptionally low sentence of 60 months in prison — five years — due to his young age. The standard sentencing range for Strange was 67-89 months.