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.

President Joe Biden spared the lives of 37 of the 40 individuals on federal death row before passing the torch to President-elect Donald Trump. Biden did not pardon the murderers, but rather downgrade