BOSTON — Judge Juan Torruella, the first Puerto Rican to sit on a U.S. federal appeals court, died Monday at the age of 87, the Boston-based 1st U.S. Toruella served nearly four decades on 1st Circuit and took part in such high-profile rulings as the tossing of Boston Marathon bomber Dzhokhar Tsarnaev’s death sentence this year. First Circuit Chief Judge …