It started with the fatal shooting of an MIT campus police officer last night and has lead to the death of one of the bombing suspects.
A lot has happened overnight in the search for the two Boston Marathon bombing suspects identified yesterday by the FBI.
It began when a campus police officer at the Massachusetts Institute of Technology was killed in a shooting on the campus outside Boston.
Two men shot and killed the university policeman while he sat in
his car, the district attorney's office said. State police and the
FBI found the officer there with multiple gunshot wounds.
The same two bombing suspects then hijacked a car at gunpoint in Cambridge and initially held the vehicle's driver in the car with them, the district attorney said. They released him half an hour later at a gas station unharmed.
Authorities said the suspects threw explosives from the car as police followed it into Watertown. The suspects and police exchanged gunfire and one of two suspects was critically injured and died.
The surviving suspect was identified as Dzhokhar A. Tsarnaev, 19, of Cambridge, Mass.
And a third man has been arrested, according to NPR News. He's being called an accomplice, but not yet called a suspect, reports NPR's Dina Temple-Raston.
The Boston Police Department reported on its Twitter account that police will be conducting a controlled detonation near Charlesgate and conducting a door-to-door search in Watertown, Mass.
The Atlanta Journal-Constitution has a live-blog of a timeline of Boston Marathon bombing news.