Massachusetts Senator Elizabeth Warren says she's relieved Dzhokhar Tsarnaev has been found guilty of carrying out the Boston bombing - the greatest tragedy in her state's recent history - but doesn't believe he should be executed. In an interview with CBS This Morning on Thursday, Warren reacted to Wednesday's jury verdict which found the 21-year-old guilty on all 30 charges related to the Boston Marathon explosions which killed three and injured hundreds at the finish line. 'Nothing is ever going to make those who were injured whole and it's been a terrible thing but this is a step toward justice,' Warren said. When asked what she would like to see happen in the penalty stage of the trial, liberal-minded Warren stuck by her anti-death penalty stance. 'My heart goes out to the families here but I don't support the death penalty. I think that he should spend his life in jail - no possibility of parole - he should die in prison. But that's just how I see it. It's up to the jury,' she said. Scroll down for video . Life in prison: Massachusetts Senator Elizabeth Warren said Thursday that she doesn't believe convicted Boston bomber Dzhokhar Tsarnaev should be sentenced to death. Warren pictured left on CBS This Morning on Thursday. Tsarnaev pictured right in Boston federal court on Wednesday as his guilty verdict was read . Warren went on to speak about current Democratic party issues, as well as comment and likely presidential candidate Hillary Clinton. However, the woman once thought to be a front-runner for her party refused to compare her politics to the former secretary of state. Warren has repeatedly denied that she will run in the Democratic primaries. Now that Tsarnaev has been found guilty of committing the Boston Marathon bombings, the case will move on to the penalty stage of the trail which could begin as early as Monday. It is in this stage of the trial that the jury will decide whether or not to sentence Tsarnaev to life in prison or the death penalty - a matter in which they will have to vote unanimously. Justice: Boston Marathon bombing survivor Karen Brassard, second from left, speaks alongside Carlos Arredondo, left, Laurie Scher, second from right, and Mike Ward, on Wednesday following the conviction of Dzhokhar Tsarnaev . While the defense rarely cross-examined witnesses in the first portion of the trial, they will be more active in the next stage as they attempt to convince the jury against sentencing Tsarnaev to death. One thing Tsarnaev's favor is his lead defense attorney Judy Clarke, who specializes in death penalty cases and spared notorious killers like Unabomber Ted Kaczynski from execution. Clarke's method is to humanize her client to the jury, with stories about their life which might explain what led them to commit such heinous crimes. In the first portion of the trial, the defense alluded to an argument that then 19-year-old Tsarnaev was influenced by his radicalized older brother Tamerlan. Attorneys will likely continue that storyline with this next phase of the trial, exploring the brothers relationship, their childhood in Soviet Russia and Kyrgzstan and their later immigration to the U.S. with their parents. However, legal experts say saving Tsarnaev from the death penalty will be her toughest job yet. Secret weapon: Tsarnaev's lead defense attorney, Judy Clarke, specializes in death penalty cases and has spared several of her notorious killer clients from execution by humanizing them to the jury. Pictured above leaving court on Wednesday, after hearing the guilty verdict for Tsarnaev . 'I haven't yet heard all the mitigating factors you'd expect to hear. In traditional death penalty cases, it's physical abuse, sexual abuse, drug abuse, dropping out of school,' Meg Penrose, a death penalty expert at Texas A&M University School of Law, said. However, Tsarnaev has yet another advantage of being put on trial in Massachusetts since the state outlawed capital punishment in 1984. While the death penalty is not allowed in state cases, Tsarnaev is being tried in federal court which makes the death penalty a possible sentencing option. However, experts say that since the jury was pulled from a pool of Massachusetts residents, they could decided against the death penalty as a reflection of the state's general politics on the issue. The prosecution will also have to convince the jury while Tsarnaev should be sentenced to death, proving that the crime was carried out with certain aggravating factors that warrant execution. So far they've listed such factors as killing a child and planning the attack for the day of the Marathon to maximize the loss of life.
Tsarnaev, 21, was found guilty Wednesday on all 30 charges related to the 2013 Boston Marathon bombing .
His case will now proceed to the penalty stage, in which the jury will decide whether to sentence him to life in prison or execution .
Reflecting her state's liberal politics, Warren is against capital punishment .
Warren also spoke about current party issues - but refused to compare her politics to those of likely presidential candidate Hillary Clinton .
Warren has repeatedly said she will not be running for president in 2016 .