SPOKANE, Wash. — The Spokane County Sheriff's Office has arrested a suspect in connection with its investigation into the Old Trails fire, the most destructive wildfire of the three burning in and around this eastern Washington city. The suspect will make his first court appearance on Tuesday, according to county prosecutor Preston McCollam. Since last weekend, the wildfires have displaced 65,000 people, destroyed some 700 buildings and burned through 7,000 acres of land. Erick Doxey / AFP via Getty Images / AFP via Getty Images Three members of the Spokane Fire Department sit on a curb in front of burned-out residential homes in the Balboa neighborhood of Spokane, Wash., on Sunday. Hundreds of people, including many elderly, are staying at the Red Cross shelter in downtown Spokane.