HOT SPRINGS, S.D. (KELO) -- Authorities in Hot Springs are looking for a missing teenager. The police department says 16-year-old Deren Pershall was last seen at around 8 p.m. Saturday leaving the Angostura Dam area driving a 2004 Black Chevy Impala with a South Dakota license plate 27Z386. He's des cribed as 5 feet, 7 inches [...] ...read more read less