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Watertown

A SWAT team arrives at the corner of Stuart Street and Dartmouth Street after two explosive devices detonated at the finish line of the 117th Boston Marathon on April 15, 2013 in Boston, Massachusetts. Two people are confirmed dead and at least 23 injured after two explosions went off near the finish line to the marathon. (Photo by Darren McCollester/Getty Images)

Investigators Face Challenges In Wake Of Boston Marathon Bombings

Investigators face big challenges now as they probe deeper into the Boston Marathon bombings. Now, they want to know why it happened and if others were involved.

04/21/2013

(Photo Credit: Mario Tama/Getty Images)

Boston Residents Breathing Easier As Authorities Continue Investigation

Boston Marathon bombing suspect Dzhokhar Tsarnaev lay hospitalized under heavy guard Saturday as people across the Boston area breathed easier and investigators tried to piece together the who and why of the deadly plot.

04/20/2013

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