In this courtroom sketch, defense attorney Judy Clarke is depicted addressing the jury as defendant Dzhokhar Tsarnaev, right, sits during closing arguments in Tsarnaev's federal death penalty trial Monday, April 6, 2015, in Boston. Tsarnaev is charged with conspiring with his brother to place two bombs near the Boston Marathon finish line in April 2013, killing three and injuring more than 260 people. (AP Photo/Jane Flavell Collins) (The Associated Press)
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Members of the legal defense team for Boston Marathon bombing suspect Dzhokhar Tsarnaev, from the left, Miriam Conrad, David Bruck, William Fick and Judy Clarke, arrive at federal court, Tuesday, April 7, 2015, in Boston. A month after the trial began in the Boston Marathon bombing case, the jury began deliberations Tuesday. (AP Photo/Steven Senne) (The Associated Press)
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ADDS NAMES OF LAWYERS - In this courtroom sketch, Dzhokhar Tsarnaev, second from left, is depicted standing with his defense attorneys William Fick, left, Judy Clarke, second from right, and David Bruck, right, as the jury presents its verdict in his federal death penalty trial Wednesday, April 8, 2015, in Boston. Tsarnaev was convicted on multiple charges in the 2013 Boston Marathon bombing. Three people were killed and more than 260 were injured when twin pressure-cooker bombs exploded near the finish line. (AP Photo/Jane Flavell Collins) (The Associated Press)
Jurors in the trial of Boston Marathon bomber Dzhokhar Tsarnaev (joh-HAHR' tsahr-NEYE'-ehv) are set to resume deliberations for a second day in the first phase of his death penalty trial.
The jury of seven women and five men began deliberations Tuesday on 30 federal charges against Tsarnaev. They'll return to U.S. District Court Wednesday.
During the trial, Tsarnaev's lawyer admitted Tsarnaev participated in the deadly 2013 attack, but said his older brother was the mastermind.
If Tsaranev is convicted, the same jury will hear more evidence in a second phase of the trial to decide whether the 21-year-old is sentenced to death or life in prison.
Three people were killed and more than 260 were injured when twin pressure-cooker bombs exploded near the marathon's finish line on April 15, 2013.