Two suspects appear to have robbed a 7-11 in Cambridge, Mass. late Thursdat night before fleeing to the MIT campus. There, they shot and killed a campus police officer before fleeing to nearby Watertown. On the way, the suspects fired on police and reportedly dropped hand grenades from their stolen Mercedes. Once in Watertown, the suspects engaged in a firefight with Boston and Watertown police. Boston’s Channel 5 News reported that the suspects fired as many as 25 rounds in a single minute. Police managed to capture one suspect, and another appears to have been shot and taken to Beth Israel hospital
Update 3:10 A.M.: According to WFSB's Kevin Michael, Boston police have stated the names of both Boston Marathon bombing suspects over police scanner: Suspect one is Mike Mulugeta, and Suspect 2 is Sunil Tripathi. Police chatter should not be taken as official statements.
Update 3 A.M.: The Boston Marathon bombing suspect captured by police appears to be Sunil Tripathi, a student missing from Brown University, the Atlantic's Matt O'Brien reports.