Katherine Russell, widow of bomb suspect Tamerlan Tsarnaev, under scrutiny

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Katherine Russell, widow of bomb suspect Tamerlan Tsarnaev, under scrutiny

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Katherine Russell, widow of bomb suspect Tamerlan Tsarnaev, under scrutiny

WCVB - Boston 2:08 mins

Authorities are skeptical of the insistence by the widow of dead bombing suspect Tamerlan Tsarnaev that she had no knowledge the Boston Marathon attack

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