A homeowner who grabbed a rifle from his house and fired warning shots in a confrontation with a group of men on his lawn faces criminal charges, but his family said he was defending his home from a threatening mass of strangers. George Grier, 30, fired rounds into the ground and air from an assault-style rifle after arguing with a large group of men gathered outside his Long Island home Sunday evening, Nassau County police said Monday. No one was hurt. His sister, Caprice Rines, said Grier feared for the safety of his wife and two small children when about...