WORCESTER - A Worcester firefighter who was rescued from a burning apartment building on Lowell Street early Sunday has died.Crews were on the scene of a five-alarm fire in an apartment building on Lowell Street. Two firefighters were trapped and pulled from the building by colleagues. Both were transported to a hospital, where one of them passed away.Fire Chief Michael Lavoie has identified the victim as Firefighter Christopher Roy, 36, a 2½-year member of the department.