ADDS BOTH OFFICERS KILLED - NYPD Commissioner Bill Bratton, right, stands beside Mayor Bill de Blasio as he wipes his eye during a news conference at Woodhull Medical Center, Saturday, Dec. 20, 2014, in New York.  An armed man walked up to two New York Police Department officers sitting inside a patrol car and opened fire Saturday afternoon, killing both officers before running into a nearby subway station and committing suicide, police said. (AP Photo/John Minchillo)