He is also charged with 39 burglary-related crimes in six Utah counties: Beaver, Emery, Garfield, Iron, Kane and Sanpete.
Authorities say Knapp, on parole after a California burglary conviction, went on the run in 2004 and lived in and ransacked remote cabins across Utah. He eluded police for years while stealing guns, whiskey and supplies.
Federal prosecutors stepped in and took the lead on the case in mid-September, postponing a plea hearing in Sanpete County. Sanpete County prosecutor Brody Keisel said he had been trying to negotiate a single plea deal on all state and possible federal charges but gave up after Knapp refused to cooperate.
The charges from six Utah counties go back to 2009, but authorities believe Knapp was breaking into cabins for several years before that.
He carried a heavy backpack and often used snow shoes as he trekked through Utah’s mountains. His legend grew when police released a cabin surveillance photo of him, in the snow shoes with a rifle slung over his shoulder, in December 2011.