apr 15, 2013 - Boston Marathon bombings
Description:
Two homemade bombs detonated 12 seconds and 210 yards apart at 2:49 p.m., near the finish line of the annual Boston Marathon
casualties - 3 deaths and 264 injuries
responsible party - Tamerlan Tsarnaev, Dzhokhar A. Tsarnaev
Added to timeline:
evolution of terrorism timeline
Key
Severe (red) - severe risk
High (orange) - high risk
El...
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