BOSTON — A police officer who was honored for his role in the aftermath of the Boston Marathon bombing was in an induced coma fighting for his life early Saturday after being shot in the face during a traffic stop, authorities said. The suspect in the shooting hopped out of the stopped car on Friday evening and opened fire on officers, striking Officer John Moynihan just below his right eye and an apparent bystander in her arm, police Commissioner William Evans said. Other officers returned fire and killed the suspect at the scene, Evans said.