they want to remember officer sean collier who was ambushed and killed before the two brothers headedown. weave all seen what occurred on april 19th, and commissioner davis has spoke about that and how well, impressive his department responded that day. i am here today to talk about the events that occurred in watertown in the early morning hours of april 19th. that seemingly quiet overnight shift suddenly turned into a war zone. for the first time in america, police officers were attacked with guns and bombs, be and it happened on a quiet back street of my community. those two brothers were trying to kill my police officers and had plans to kill and injure more innocent people. the handful of watertown officers on duty that night acted heroically and defended watertown without regard for their own personal safety. they displayed courage and bravery as they stubbornly defended our community. just as in boston, my officers were at their very best when confronted with the biggest challenge of their careers. their split second decisions and actions went far beyond their academy training,