Tsarnaev was convicted of all 30 charges against him, including conspiracy and use of a weapon of mass destruction and the killing of Massachusetts Institute of Technology Police Officer Sean Collier during the getaway attempt. Prosecutors said the brothers carried out the attack to punish the U.S. for wars in Muslim countries.

The move spares the lives of people convicted in killings, including the slayings of police and military officers, people on federal land and those involved in deadly bank robberies or drug deals.

President Joe Biden is commuting the sentences of 37 people on death row, which means those individuals will have their sentences changed from execution to life without parole, the White House said in a press release on Monday.

The sentences will be reclassified to life without the possibility of parole, the White House said. The move applies to 37 of the 40 federal inmates on death row.

Over the course of his election campaign, Trump vowed to resume federal executions and make more people eligible to receive the death penalty, including those convicted of raping children or drug and human-trafficking cases, as well as migrants who kill US citizens or police officers.

President-elect Donald Trump, who hopes to expand federal use of the death penalty, condemns President Joe Biden’s decision to commute sentences of 37 federal death row inmates to life in

President-elect Donald Trump promised on Tuesday to "vigorously pursue" capital punishment after President Joe Biden commuted the sentences of most people on federal death row partly to stop Trump from pushing forward their executions.