The Chelsea Police Department sent a contingent of 15 officers in full-dress uniform on Wednesday to the funeral of Massachusetts Institute of Technology (MIT) Police Officer Sean Collier in Cambridge.
Chief Brian Kyes said the department joined numerous other departments in the area by sending a large contingent to the ceremony, which was closed to the public.
Thousands of public safety personnel from all over the nation and from Canada were present at the funeral.
Also in attendance was U.S. Vice President Joe Biden.