PERRY HALL, Md. (AP) — A 16-year-old boy has been charged with first-degree murder in the slaying of a Baltimore County, Maryland, police officer, and three other suspects were taken into custody, authorities said Tuesday. A statement of probable cause dated Tuesday identified the suspect as Dawnta Anthony Harris of Baltimore and the officer as Amy Caprio. Police have not confirmed how Caprio was fatally injured in a suburban neighborhood Monday, but witnesses reported hearing a pop before seeing a Jeep run her over. Meanwhile, officials said Tuesday that three additional teenagers had been taken into custody. Baltimore County’s public...