Boston Marathon BombingsDzhokhar TsarnaevTamerlan Dzhokhar

Bomb detonates

15 Apr, 2013

Two homemade bombs explode 12 seconds and 210 yards apart on Boylson Street, where crowds of fans and runners wait at the Boston Marathon finish line, killing three and wounding nearly 300 others. The bombs were undetected by officials who swept the area twice before the beginning of the race, though people are permitted to carry bags in and out of the area freely. The blasts blow out windows on adjacent buildings but do not cause any structural damage.

The initial response team is made up of Massachusetts Army National Guard soldiers, Boston Police, The American Red Cross, and a Naval bomb-disposal unit.

Boston Marathon Bombings - Clear footage

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