A person briefed on the Boston Marathon investigation says the explosives were in 6-liter pressure cookers and placed in black duffel bags. The blasts killed three, including an 8-year-old boy and ... more 
A person briefed on the Boston Marathon investigation says the explosives were in 6-liter pressure cookers and placed in black duffel bags. The blasts killed three, including an 8-year-old boy and injured scores of others. less 
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WFTS-Tampa
Tue, Apr 16, 2013 12:46 PM EDT