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The Boston Globe

Metro

Testimony concludes in trial of Tsarnaev college friend

Testimony ended Monday in the trial of a former University of Massachusetts student and friend of Boston Marathon bombing suspect Dzhokhar Tsarnaev, and jurors are expected to begin deliberating Wednesday on whether Azamat Tazhayakov took part in a criminal scheme to cover up evidence after the bombing, or whether he just tagged along while another friend privately plotted to obstruct justice.

Prosecutors rested their case Monday against Tazhayakov, 20, after presenting about 15 witnesses, more than half of whom were FBI agents. Their testimony was the first time so many federal agents have spoken publicly — and in detail — about the fast-moving events that unfolded the night of April 18, 2013, hours after the FBI publicized photos of two unnamed bombing suspects.

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