SAN FRANCISCO (AP) - Officials say a hot tub's faulty wiring is to blame for one of the state's most destructive wildfires, a blaze that killed four people and destroyed more than 1,300 homes last year. The California Department of Forestry and Fire Protection released a detailed report Wednesday into the cause of the 120-square-mile wildfire that devastated a large portion of rural Lake County and parts of Napa County about 90 miles north of San Francisco in September 2015.