JANESVILLE – Sheriff Troy Knudson recently announced the promotions and hirings of deputy sheriffs for the Rock County Sheriff’s Office. UW-Green Bay alumnus Luke DuCharme ’03 (Music) will be promoted to detective on Sept. 3. DuCharme currently serves as a deputy assigned to the patrol bureau. He is the leader of the honor guard. More via Beloit Daily News – Living, Rock County Sheriff’s Office announces new deputy sheriff hirings, promotions.