No ‘Manifesto’ But New Clues to ‘Frustrated’ Boston Suspect: Sources

Just over a month after Boston Marathon bombing suspect Tamerlan Tsarnaev was killed during a standoff with police, investigators said they have begun to piece together a picture of what he did during a six-month visit last year to Dagestan, a volatile region in southern Russia that is home to Tsarneav’s parents as well as a violent struggle with Islamist insurgency.

American investigators believe Tsarnaev traveled to Dagestan seeking to make contact with militant groups, but for reasons that remain unclear, he was either unable or unwilling to join their ranks.

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