The Maryland man accused of planning an ISIS-inspired attack at the National Harbor says he’s not guilty. Rondell Henry was arraigned in federal court today and pleaded not guilty to one count of interstate transportation of a stolen vehicle. Prosecutors say Henry stole a U-Haul van last month and drove around Dulles International Airport looking for crowds to drive into. When he couldn’t get into any secure areas, prosecutors say Henry drove to the National Harbor with the same plan to run down pedestrians. He was arrested after surveillance video showed him parking and getting out of the U-Haul that was reported stolen two days earlier. Henry has not been charged with any terrorism-related offenses at this time.