Dzhokhar Tsarnaev
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Boston bomber trial: Dzhokhar Tsarnaev given sentence

The man convicted of the 2013 Boston Marathon bombing has been sentenced to death.

Dzhokhar Tsarnaev was found guilty of all the charges against him in April, two years after the attack.

Three people were killed and more than 260 injured when the bombs exploded at the finish line.

Jon Sopel looks at the background to the case.

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