BONNERS FERRY, Idaho – A Boundary County man charged with vehicular manslaughter confessed that he was drinking and driving the day of the accident, after initially denying it, an Idaho State Police trooper testified Friday. Luke Peterson, 26, is charged with three counts of vehicular manslaughter and one count of aggravated DUI in the deaths of 21-year-old Tabitha C. Saunders, her fiance, Bart Bartron, 24, and their 2-year-old daughter, Kjestine Saunders.