Ten Nassau County police officers -- many using their own time off -- headed to Boston from Long Island for MIT Officer Sean Collier's funeral Wednesday.
The contingent was led by Officer James McDermott, who runs the funeral committee for Nassau's rank-and-file union, the Police Benevolent Association.
Some 15,000 people -- members of the MIT community and throngs of police officers from across the country -- attended Wednesday's service.
On McDermott's wrists were a half-dozen colored bracelets, each memorializing past police officers -- Nassau County cops -- killed in the line of duty, including Geoffrey J. Breitkopf, 40, killed in March 2011 in a friendly fire shooting in Massapequa Park, and Officer Arthur Lopez, gunned down, allegedly by an ex-con, during an October traffic stop on the Queens-Nassau border. Lopez was 29. Collier was 26.
"It was especially sad -- especially because of his age," McDermott said of Collier. "It made me think of Artie Lopez, who we just lost, who was just another young, bright, shining star who was cut down way too young."
Prosecutors say Darrell Fuller, 33, of Queens, out on parole since 2010, shot Lopez, of Babylon Village, after the officer pulled him over Oct. 23 on the Nassau-Queens border.