 of 16-year-old Tylee, 7-year-old JJ, and Tammy Daybell. And Captain Michael Harp, with the Salt Lake City Fire Department, has been identified as the man who was killed during a rafting trip on the Green River in Dinosaur National Monument. Officials with the U.S. National Park Service said the 54-year-old Sandy resident died Thursday while participating in a private permitted trip.