New York Police Department Officer Wenjian Liu and his partner, Officer Rafael Ramos, were killed in an ambush shooting by a man who made references online to the killings of unarmed black men at the hands of white police officers.
Brookline Police snapped this photo of K9 officers paying their respects to Officer Liu.
Police from Methuen, Massachusetts, snapped a photo of the motorcycles lined up at the service for Officer Liu.
Police from Andover, Massachusetts, arrive in New York City.
Methuen Police capture a photo of the "Sea of Blue."
Newburyport Police posted this collage of the departments paying their respects to Officer Liu.
New York Police Department officers escort police into the city for Officer Liu's services.
Massachusetts State Police
Massachusetts State Police gather with NYPD in New York.
Manchester, New Hampshire, police traveled to New York to attend the service.
Brookline Police in New York for the slain NYPD officer's funeral.
Rhode Island State Police
Rhode Island State Police meet with other department's officers in New York.
Police from Scarborough, Maine, have a presence in New York for the funeral.
Chelmsford Honor Guard
Authorities from Chelmsford, Massachusetts, en route to the service.