BOSTON (CBS) – Sen. Elizabeth Warren said Thursday that she’s against the death penalty for Dzhokhar Tsarnaev and would rather see the Boston Marathon bomber “die in prison.”

In an interview on CBS This Morning, the U.S. senator from Massachusetts was asked if she is in favor of the death penalty for the 21-year-old, who was convicted Wednesday in the attacks that killed three and injured more than 260 in April 2013.

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“You know my heart goes out to the families here, but I don’t support the death penalty,” she said. “I think that he should spend his life in jail, no possibility of parole. He should die in prison.”

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Warren said that if Tsarnaev is spared the death penalty, it’s “not as if you turn this guy free.”

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“The point is that he stays in prison, he dies in prison, he’s put away. He’s not a danger to anyone else,” she said. “He’s not a part of an ongoing story, he’s not someone who is able to keep sucking up a lot of energy and a lot of attention.”

Wednesday’s unanimous verdict on all 30 counts against Tsarnaev was a “step toward justice,” Warren said.

“Nothing is ever going to make those who were injured whole and it’s been a terrible thing, the marathon bombing,” she said. “The families need their chance to heal, to move on beyond this and I think that’s what really matters most.”

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WBZ NewsRadio 1030’s Carl Stevens reports: