ATLANTA -- Three Atlanta police officers were shot and wounded and an elderly woman killed at a house in northwest Atlanta Tuesday night. The woman, identified by relatives as 92-year old Kathryn Johnston, opened fire on the officers from the narcotics division at a house at 933 Neal Street, according to officials. Atlanta Police Asst. Chief Alan Dreher said at a news conference Wednesday that an undercover officer made a drug purchase at Johnston’s address late Tuesday afternoon from a male suspect. Officers were able to obtain a search warrant after that. Asst. Chief Dreher said as they were executing...