Boston Marathon Bombing

Tsaernev Had Many Gunshot Wounds When Brought in to Hospital

Head, neck, legs and hands all hit

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The FBI says in an affidavit that the Boston Marathon bombing suspect was seen using a cellphone after placing a knapsack on the ground at an explosion site.

The document does not say whether suspect Dzhokhar Tsarnaev is thought to have used the cellphone as a detonator.