A look at the troubled history of Chechnya, where the Boston Marathon bombings suspects are said to have come from.
It's not clear if the Tsarnaev brothers were radicalized as a result of their apparent Chechen roots. A spokesman for Chechen leader Ramzan Kadyrov said the brothers had not been connected with the Chechen republic for many years, according to Russia's Interfax news agency.
Seoul National University/Handout/Reuters
Lucy Richardson/ Reuters
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