Police release CCTV of US cop killer

As the New York Police Department mourns two of its own, Mayor Bill de Blasio pleaded for a pause in protests amid a widening rift with those in a grieving force who accuse him of creating a climate of mistrust that contributed to the killings of two officers.
Mr De Blasio called for a halt of political statements until after the funerals of the dead officers, an appeal to both sides in a dispute centred on the deaths of unarmed black men at the hands of white police officers.