Flagstaff, AZ – An investigation is underway into the death of a 20-year-old student from Northern Arizona University. Bryce Gillies of Virginia was found dead less than 1/2 mile from the Colorado River near Bonita Creek. He had set out on a backpacking trip from the North Rim, but was reported missing Tuesday after failing to return home. Rescue teams say Gillies was found along with his backpack and other personal items. Authorities say there were no obvious signs of trauma or injury. Park Service investigators say it could take up to a month to determine the cause of death.