From the NYT:

BOSTON — A federal appeals court on Friday overturned the death sentence of Dzhokhar Tsarnaev, who was convicted of the 2013 Boston Marathon bombings, and ordered a new penalty-phase trial.

The ruling, from the U.S. Court of Appeals for the First Circuit, concluded that the presiding judge in the 2015 trial, George A. O’Toole Jr., “did not meet the standard” of fairness, because he did not sufficiently scrutinize sitting jurors for bias.