Idaho killer Wess Roley posted a chilling online photo of himself masked in camouflage with a belt of rifle shells, along with a Bjork song with lyrics ominously warning, “I’m going hunting’’ — just hours before his deadly ambush, officials said Monday.

Authorities identified the suspect as Wess Roley. Kootenai County Sheriff Bob Norris said it appeared he had been living in his car, and authorities did not know why he was in the area. Roley, who dreamed of becoming a firefighter himself, was found dead on the mountain from a suspected self-inflicted gunshot wound.