CANTERBURY, N.H. (AP) — The New Hampshire State Fire Marshal’s Office says it has opened an investigating into a fire that destroyed a small cabin where an off-the-grid hermit had lived for almost three decades. Eighty-one-year-old David Lidstone lived in the woods along the Merrimack River and was known by locals as “River Dave.” He was jailed on July 15 on a civil contempt sanction and was told he’d be released if he agreed to leave the cabin, which is on property owned by a Vermont man who considers Lidstone a squatter. Fire destroyed the cabin on Wednesday afternoon.