A 19-year-old hiker who tragically drowned in a Utah waterfall and accidentally filmed her own death has been identified. Cynthia Ann Grimwood of Springville went hiking with her dog around 3 pm on Friday afternoon at Horsetail Falls in Alpine, and was swept away in the fast moving current after falling into the swollen river. Two hikers found a small dog and her cell phone that captured the teen walking into the water before she disappeared, the Utah County Sheriff Sgt. Spencer Cannon told KSL.com. The water level was 'abnormally high' that day and officials have called the young woman's...