(Marion Co., OR)  --  The Marion County Sheriff's Office is crediting a K-9 unit for helping to find a missing boy.  The 14-year-old, named Austin, was reported missing around two o'clock yesterday afternoon after he didn't return as scheduled from bug hunting.  KATU-TV reports Deputy Jason Bernards and his K-9, Rolo, were sent to Pudding River, and were successful in finding Austin on the other side of the river from where he was supposed to be.