Local officials are stepping up their investigation into a series of recent fires after the latest blaze took one house to the ground and seriously threatened two others last Friday night.A quick, coordinated response by firefighters – with assistance from neighbors using water hoses – helped keep the blaze at 1207 N. 9th St. from also engulfing the neighboring houses on each side.“This baby was rolling! There was fire coming through every window and every door,” Assistant Volunteer Fire Chief Paul Sanchez said of the scene which he encountered when he arrived from his home just a couple of blocks ...