Update: Police in Salt Lake City say the missing 17-year old hiker has been found alive. 17-year-old missing hiker found alive. @UPDSL @KUTV2News pic.twitter.com/V65GkMsAn6 — mike sadowski (@sadowski_mike) January 3, 2020 Authorities on Friday launched a search in a canyon east of metro Salt Lake City for a missing 17-year-old...