BOSTON—Boston Marathon bomber Dzhokhar Tsarnaev’s attorney urged a federal appeals court Tuesday to throw out the 29-year-old’s death sentence because of juror misconduct claims just months after it was revived by the nation’s highest court.
Tsarnaev is making a renewed push to avoid execution after the Supreme Court last year reinstated the death sentence imposed on him for his role in the bombing that killed three people and injured hundreds near the finish line of the marathon in 2013.
