April 16, 2013
A mourner places a note with flowers at a police barricade Tuesday near the finish line of the Boston Marathon. The bombs that ripped through the crowd at the Boston Marathon, killing three people and wounding more than 170, were fashioned out of pressure cookers and packed with metal shards, nails and ball bearings to inflict maximum carnage, a person briefed on the investigation said Tuesday.
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Federal officials are denying that a suspect is in custody in the Boston Marathon bombings.
Federal agents zeroed in Tuesday on how the Boston Marathon bombing was carried out — with kitchen pressure cookers packed with explosives, nails and other lethal shrapnel — but said they still didn’t know who did it and why.
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