There have been many developments in the Boston Marathon bombing overnight. Twenty four hours ago, investigators didn’t know very much about who was responsible for Monday’s attack.
Here’s how last night’s events played out.
Late Thursday afternoon the FBI released photographs and video of two suspects and appealed to the public’s help identifying them. Around 10 p.m. shots were fired on the Massachusetts Institute of Technology campus in Cambridge. At 10:30, an MIT campus police officer, who was later pronounced dead, was found with multiple shot wounds in his vehicle.
Authorities say one of two suspects in the Boston Marathon bombing is dead and a massive manhunt is underway for another.
Residents of the Boston suburb of Watertown have been advised to keep their doors locked and not let anyone in.
The Middlesex district attorney says the two men are suspected of killing an MIT police officer at the college late Thursday, then stealing a car at gunpoint and later releasing its driver unharmed. Hours earlier, police had released photos of the bombing suspects and asked for the public's help finding them.