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Boston Marathon bombing – a look back

Associated Press
In this photo provided by The Daily Free Press and Kenshin Okubo, people react to an explosion at the 2013 Boston Marathon in Boston, Monday, April 15, 2013. Two explosions shattered the euphoria of the Boston Marathon finish line on Monday, sending authorities out on the course to carry off the injured while the stragglers were rerouted away from the smoking site of the blasts. (AP Photo/The Daily Free Press, Kenshin Okubo) MANDATORY CREDIT

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Jurors in the trial of Boston Marathon bomber Dzhokhar Tsarnaev are getting ready to hear evidence on what his punishment should be — life in prison or the death penalty — as survivors and victims' families weigh in with their views.

The penalty phase of Tsarnaev's trial is set to begin Tuesday in federal court.

Tsarnaev's lawyers are expected to continue to portray Tsarnaev's older brother, Tamerlan, as the mastermind of the 2013 deadly attack. They say Tsarnaev does not deserve the death penalty because he was a 19-year-old who was under the influence of his domineering brother.

Prosecutors contend Tsarnaev was an equal partner with his brother and in the and deserves the ultimate punishment. They are expected to call people injured in the attack to describe what impact the bombings have had on their lives.ssree people were killed and more than 260 were injured when twin pressure-cooker bombs exploded near the marathon finish line on April 15, 2013.

Tsarnaev was convicted of all 30 charges against him on April 8. (AP)

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