Thousands of police gathered in New York to bid farewell to a murdered officer where a small number used the funeral to protest against mayor Bill de Blasio once again.
New York reeled after the murder of two uniformed cops by a man whom investigators say told bystanders to "watch what I'm going to do" just before the killings.
US President Barack Obama on Sunday "unconditionally" condemned the killing of two uniformed New York police officers who were gunned down in their patrol car in Brooklyn by a lone gunman.
Bruce Springsteen and Coldplay's Chris Martin tried to replace Bono's legendary vocal cords in a surprise U2 concert in New York to rally support for fighting AIDS.
A rookie New York police officer remained in hospital in a serious condition after being attacked by a man with a hatchet who was then shot dead by officers.