Photo of Tamerlan Tsarnaev at 2010 New England Golden Gloves 2010
Photo of Tamerlan Tsarnaev at 2010 New England Golden Gloves 2010

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    Tracing the suspected bombers' roots

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Tracing the suspected bombers' roots

CNN's Nick Paton Walsh describes the two suspected Boston bombers' background and their roots to the Caucasus region.

Tracing the suspected bombers' roots

CNN's Nick Paton Walsh describes the two suspected Boston bombers' background and their roots to the Caucasus region.