Boston marathon bombing trial: a look back on the attack in pictures

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At least three people have been killed and another maimed or injured after two "powerful" bombs were detonated at the finish line of the Boston marathon. The co-ordinated blasts, the worst attack on US soil since the September 11 terror atrocities, transformed a site of celebration on a public holiday afternoon into a. The latest news and comment on the Boston Marathon bombing.

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Two explosives went off near the finish line of the Boston Marathon April 15, , killing three and wounding people. Sean Collier, 26, an MIT campus police officer, was fatally shot in his patrol car April 18th by the Boston bombers. The three killed by the explosions were year-old Krystle Campbell (left), 8-year-old. At least three people have been killed and another maimed or injured after two "powerful" bombs were detonated at the finish line of the Boston marathon. The co-ordinated blasts, the worst attack on US soil since the September 11 terror atrocities, transformed a site of celebration on a public holiday afternoon into a.


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