4 people dead and 1 missing after an explosion destroys 3 structures in Pennsylvania
PLUM, Pa. — Four people were dead and a fifth was unaccounted for following a house explosion in western Pennsylvania that destroyed three structures and damaged at least a dozen others Saturday morning, authorities said. Allegheny County officials said three people were taken to hospitals after the blast shortly before 10:30 a.m. in the borough of Plum, about 20 miles (32 kilometers)…