A 63 year old South Dakota man is charged with vehicular homicide. The head on collision killed 28 year old Heather Unser of Pierre last month. Walt Taton of Faith was charged after turning himself in at the Haakon County Sheriff’s Office on Thursday. Taton was also charged with driving under the influence of alcohol. The charges stem from an April 28 crash along Highway 34 near Hayes. Another person in the crash, 21 year old Sadie Clark of Yankton received serious but non-life threatening injuries.