Sprinkler system aids firefighters at apartment fire set by arsonist (Boston, MA)

A Brighton woman is facing arson and attempted murder charges following a fire at a three-story building Sunday morning.  Sprinklers in the brick apartment building were activated and aided fire crews in their effort to get the blaze under control.  In the process of battling the blaze, firefighters had to rescue a man and woman, both 21 years old, and bring them down a ladder to safety from the third floor, according to Boston Fire Department spokesman Steve MacDonald.