Double tragedy grieves Lawrence MA after fire

Double tragedy grieves Lawrence
Late Sunday night, Sean Cahalane, a young, developmentally disabled man who was always eager to help others was the one in desperate need as a fire engulfed his house in Lawrence. His mother, 51-year-old Linda Cahalane, rushed back in to save her son. But both were killed, apparently overwhelmed by the smoke. (By Maria Cramer, Globe Staff)