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lv pkg griffin tsarnaev family troubles_00013029

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    Police: Tsarnaev's sister threatened rival with bomb

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Police: Tsarnaev's sister threatened rival with bomb

Sisters of the accused Boston Marathon bombers face their own trials. CNN's Drew Griffin has more.

Police: Tsarnaev's sister threatened rival with bomb

Sisters of the accused Boston Marathon bombers face their own trials. CNN's Drew Griffin has more.