1:55 AM: Appears to be confirmation that one suspect is in custody in Watertwon situation. Unconfirmed reports that a second suspect broke through barricade and escaped.
2:11 AM: So much chaos and scattered reports it's really hard to know what did or is happening. All I think we can be totally certain about is that there was a fatal shooting of a MIT police officer at the MIT campus and then a car-jacking that led police on a chase into Watertwon (the town next door). A lot more seems to have happened. And there is a massive, massive police presence and various SWAT and bomb squads on the scene. But given everything that's happened this week, I don't think we can be certain of anything else.
2:15 AM: First full write up in the NYT
Two young men, armed with guns and explosives in what appeared to be backpacks, engaged in a violent standoff with dozens of police on a street in Watertown, Mass., Thursday night, a resident said.
Full story here
. Very hard to know what to make of this report. It's NYT reporter on the scene and account of an eyewitness.