 difficult, you know, they're pretty long. And if you're an inexperienced hiker, potentially from out of town, you may or may not be aware of the level of difficulty. Captain Sean Dubois with Phoenix Fire indicating the family may have been out on the trail in triple digit heat for as long as five hours. Police and flagstaff say the case of a missing woman is likely a homicide. Sergeant Jerry Wintala says they've yet to find the victim, 45-year-old Kelly Petakowski. Her husband reported her missing Saturday. Now he's under arrest. During the course of the investigation, the Flagstaff Police Department interviewed family members.