Aaron F. Farinacci, 37, was arrested and charged with first-degree arson for allegedly setting the Old Trails Fire, the largest of three wildfires that have caused widespread destruction in and around Spokane, Washington. Farinacci's arrest in the investigation into the fires stemmed from a community tip. He was found to have matches and a lighter on him and had previously served prison time for manslaughter in Arizona. In 2010, Farinacci, then age 21, shot and killed his father during an argument about washing dishes, police said at the time. He was charged with murder but pleaded guilty in 2012 to manslaughter and aggravated assault, records show.