Tamerlan Tsarnaev: Mystery Surrounds Boston Bombing Suspect

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Tamerlan and Dzhokhar Tsarnaev's mother: my sons are not the Boston Marathon bombers

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Newly released image shows Tamerlan Tsarnaev holding gun

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Defense Blames Marathon Bombing On Tamerlan Tsarnaev

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Restaurant owner \

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Russia withheld key details on Tamerlan Tsarnaev, report says

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Surveillance Video of Dzhokhar and Tamerlan Tsarnaev - Suspects in Boston Marathon Explosions

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Boston bombing suspect Tamerlan Tsarnaev tied to triple homicide

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Dzhokar and Tamerlan Tsarnaev: Who Are They?

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Cyclist IDs Tsarnaev, puts him at scene of officer killing

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Defense letters suggest Tamerlan Tsarnaev was bombing mastermind

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Watertown Police Sergeant Jeff Pugilese, Who Took Down Marathon Bomber Tamerlan Tsarnaev, Retires

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Documents: Tamerlan Tsarnaev involved in a 2011 murder

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Boston Marathon bomber one of the three remaining death row inmates

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Boston Suspect Tamerlan Tsarnaev Was Competitive, Amateur Boxer

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Boston Marathon Suspect Tamerlan Tsarnaev's Visit to Dagestan in Focus

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Tsarnev brothers 3 days before bombs

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Watertown Police Sergeant Jeff Pugliese, Who Took Down Marathon Bomber Tamerlan Tsarnaev, Retires

(3:10)