The New York Times "Lede" blog reports that the Boston Marathon suspects, identified as Chechen brothers who had lived in the area about a year, led police on a chase earlier this morning during which police fatally shot one suspect; the other was reportedly still on the run as of 8 a.m. But it was reported that police were closing in on an area where they thought the suspect might be.
An M.I.T campus police officer was found in his car with multiple gunshot wounds that proved fatal. A transit officer was wounded.
The governor has reportedly suspended all public transit, and residents of Watertown, Newton, Waltham and Cambridge were asked to stay indoors. Area colleges also cancelled classes.
"With a bomb strapped to his chest, one of the Boston Marathon suspects was killed early Friday after he and his accomplice brother robbed a 7-Eleven, shot a police officer to death, carjacked an SUV and hurled explosives in an extraordinary firefight with law enforcement, authorities told NBC News," NBC News reports.