BOSTON — Despite this city’s immersion in a trial that is replaying the horrific details of the 2013 Boston Marathon bombing, the vast majority of Bostonians say in a new poll that if Dzhokhar Tsarnaev, the admitted bomber, is found guilty, he should be sent to prison for life and not condemned to death.

Given the choice, 62 percent of Boston voters said they would sentence Mr. Tsarnaev to prison for the rest of his life without the possibility of parole, while 27 percent said he should be put to death, according to a poll released Monday by WBUR, Boston’s NPR news station.

Previous polls have shown Bostonians opposing the death penalty for Mr. Tsarnaev. A Boston Globe survey conducted in September 2013, five months after the bombings, found that 57 percent favored life in prison while 33 percent wanted him put to death.

But the WBUR poll is the first to be conducted since Mr. Tsarnaev’s lawyers admitted this month that he had participated in the crimes. And it was conducted in the midst of his trial, which has included survivors recounting the graphic details of their limbs being blown off and of loved ones being killed.