Washington Governor Bob Ferguson said it was a "nightmare situation", adding: "This is likely the worst natural disaster in Spokane history." Farinacci, who was arrested over the Old Trails fire, was being held on a charge of arson in the first degree. Residents reported seeing Farinacci near some train tracks before they saw flames in the area, according to charging documents. Court records reveal Farinacci came under scrutiny from authorities in two other arson investigations for fires last summer, though he was never charged. Farinacci, then aged 21, shot and killed his father in 2010, according to court records cited by US media outlets.