SIOUX FALLS, S.D. (KELO) -- Police in Watertown are asking for help in finding a missing teenage girl. In a social media post, the Watertown Police Department says it is looking to find Olivia Decoteau, a 16-year-old Native American girl listed at 5-foot, 3-inches tall with red/brown shoulder lengt h hair.  She was last seen wearing [...] ...read more read less