Pei Xia Chen (C) widow of New York Police Department (NYPD) officer Wenjian Liu cries holding a picture of her husband during his funeral in New York’s borough of Brooklyn on January 4, 2015. A sea of blue uniformed officers crowded around a Brooklyn funeral home to honor Wenjian Liu, 32, shot in the head with partner Rafael Ramos, 40, on December 20, 2014 as the pair sat in their patrol car. The brutal double-slaying at the hands of a black gunman claiming to be avenging the deaths of African-Americans during confrontations with police shocked the nation’s largest city. AFP PHOTO/JEWEL SAMAD