BOSTON (AP) — Several days after the Boston Marathon bombing, Gov. Deval Patrick received a call in the pre-dawn hours from a top aide telling him that police officers outside the city had just engaged in a ferocious gun battle with the two men suspected of setting the bombs and that one was dead and the other had fled.Within hours, Patrick shut down the region's public transportation system and made an extraordinary request of more than 1 million greater Boston residents:Read More... More on Boston Marathon Bombing