LIVE VIDEO — Watch live coverage of the latest developments in the Boston Marathon attack.
Huge developments overnight in the Boston Marathon bombing investigation: one suspect is dead, the other is still at large and considered very dangerous
His name is reportedly Dzhokhar A. Tsarnaev, 19
One MIT police officer killed in the manhunt
You can hear several minutes of gunfire in this video
Residents in six Boston-area cities are asked to stay indoors, businesses closed
In a video posted to YouTube you can hear the firefight between two suspects and authorities in Watertown, Mass.
