New York City's
police commissioner is retiring after three years, and a top deputy will succeed him as the leader of the nation's largest police department, Mayor Bill de Blasio said Monday.
James O'Neill, 61, moved the police department away from controversial "broken windows" policies and oversaw continuing drops in crime.
Chief of Detectives Dermot Shea, a 28-year department member who started as a patrolman in the south Bronx, will be the new commissioner.