SALT LAKE CITY - He's eluded authorities for more than five years, a mountain man who roams the wilderness of southern Utah, breaking into remote cabins in winter, living in luxury off hot food, alcohol and coffee before stealing provisions and vanishing into the woods.
Investigators have clawed for clues, scouring cabins for fingerprints that match no one and chasing reports of brief encounters only to come up short, always a step behind the mysterious recluse.
They've found abandoned camps, dozens of guns, high-end outdoor gear stolen from the homes and trash strewn around the forest floor.
But the man authorities say is armed and dangerous and responsible for more than two dozen burglaries has continued to outrun the law across a swath of mountains not far from Zion National Park. He's roamed across 1,000 square miles of rugged wilderness where snow can pile 10 feet deep in winter.
And while there have been no violent confrontations, detectives say he's a time bomb. Lately he has been leaving the cabins in disarray and riddled with bullets after defacing religious icons, and a recent note left behind in one cabin warned, "Get off my mountain."
"You wouldn't want to come across that guy," said Iron County Detective Jody Edwards, who has been working the case since 2007.
Theories about his identity have ranged from two separate men on the FBI's Most Wanted List - one sought for the 2004 killing of an armored-truck guard in Phoenix, another for killing his wife and two children in Arizona.
Some have also speculated the man may be a castaway from the nearby compounds of the Fundamentalist Church of Jesus Christ of Latter Day Saints, the polygamous sect run by jailed leader Warren Jeffs.
The FBI recently discounted the theory that the man was the fugitive sought in the armored-truck guard killing after authorities got the first pictures of him from a motion-triggered surveillance camera outside a cabin. The photos showing a sandy-haired man in camouflage on snowshoes, a rifle slung over his shoulder, were taken sometime in December.
"We believe that is not Jason Derek Brown," FBI special agent Manuel Johnson told The Associated Press.
Edwards wasn't so quick to rule out the possibility, given the close resemblance to the 42-year-old Brown, who was raised Mormon and is a highly educated, well-traveled avid outdoorsman.
Johnson said the FBI has considered the possibility that the cabin burglar may be Robert William Fisher, described as a survivalist, hunter and angler who authorities say killed his family then blew up their house in Scottsdale in 2001. However, at 50 years old, Johnson is doubtful it's the man in the surveillance photos, who appears much younger.
So while detectives believe they are getting close, buoyed by the recent photos, the shadowy survivalist remains an enigma.