Jury deliberating whether marathon bomber Dzhokhar Tsarnaev should get life in prison or death penalty

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(CNN) — The federal jury that will decide whether Boston Marathon bomber Dzhokhar Tsarnaev is sentenced to death began deliberations Wednesday afternoon following closing arguments in the sentencing phase of his trial.

“This is what terrorism looks like,” prosecutor Steve Mellin said, displaying a photo of the bomb carnage. Defense attorney Judy Clarke told the jury, “We’ve shown you that Dzhokhar Tsarnaev is not the worst of the worst, and that’s what the death penalty is reserved for.”

The jury is to complete a 24-page questionnaire weighing “aggravating” versus “mitigating” factors in making a final decision on life in prison or death for each of the 17 death penalty eligible counts.