Law enforcement officers turn their backs on a video monitor as New York City Mayor Bill de Blasio speaks during the funeral of slain New York Police Department (NYPD) officer Rafael Ramos near Christ Tabernacle Church in the Queens borough of New York December 27, 2014. Tens of thousands of police and other mourners filled a New York City church and surrounding streets for the funeral on Saturday of one of two police officers ambushed by a gunman who said he was avenging the killing of unarmed black men by police. Singled out for their uniforms, the deaths of Rafael Ramos and his partner Wenjian Liu have become a rallying point for police and their supporters around the country, beleaguered by months of street rallies by protesters who say police practices are marked by racism. REUTERS/Shannon Stapleton (UNITED STATES – Tags: CIVIL UNREST POLITICS CRIME LAW)