Custer man receives 30 days in jail for death of Rosemarie Ohse, non-prescribed opioid found in his blood. #MasonCountyNews. By Rob Alway, Editor-in-Chief. LUDINGTON — After nearly 18 months following a crash on US 10-31 that resulted in the death of a 79-year-old Custer Township woman, the man who caused the crash has been sentenced. Shane Martin McDowell, of 410 N.…