The "black hat" suspect is dead, "white hat" is still at large
The Boston Police Commissioner has announced that one suspect in the Boston Marathon bombings—the man pictured above in the black hat—is dead and that the man in the white hat is still at large.
Law enforcement warn residents in Watertown, Massachusetts, that the remaining suspect is a terrorist who is looking to kill people, that he is armed and dangerous and to lock doors and stay inside. There is an ongoing search happening now.
Police establish 20-block perimeter around Dexter Street area of Watertown, Mass; searching for bombing suspect - @EmilyWCVB
— @BreakingNews via breakingnews.com
1:55 AM PT: From the Middlesex District Attorney, recapping events:
At approximately 10:20 p.m. April 18, police received reports of shots fired on the MIT campus. At 10:30 p.m., an MIT campus police officer was found shot in his vehicle ...
A short time later, police received reports of an armed carjacking by two males in the area of Third Street in Cambridge. [...]
Police immediately began a search for the vehicle and were in pursuit of the vehicle into Watertown. At that time, explosive devices were reportedly thrown from car by the suspects. The suspects and police also exchanged gunfire in the area of Dexter and Laurel streets. During this pursuit, an MBTA Police officer was seriously injured and transported to the hospital.
During the pursuit, one suspect was critically injured and transported to the hospital where he was pronounced deceased. An extensive manhunt is ongoing in the Watertown area for the second suspect, who is believed to be armed and dangerous.
1:58 AM PT:
NBC's PETE WILLIAMS: "Authorities say these people came from overseas... had overseas military training... been here about a year."
— @DylanByers via TweetDeck
2:24 AM PT: NBC's Pete Williams reports that these overnight events didn't begin because the FBI was closing in on the suspects, but that they apparently panicked after Thursday's FBI press conference where their pictures were shown. Williams also shoots down the much-bandied rumor that the suspect in the white hat was a Brown University student who had been missing since March 16.
2:31 AM PT: Medical officials at Beth Israel Hospital—where the Boston Marathon bombings suspect died—said suspect had multiple gun shot wounds and "blast injuries," was in cardiac arrest when he was brought into the hospital and died without speaking.
2:56 AM PT: New thread.