The day Boston became a ghost town

Summer Street in downtown Boston is empty as authorities hunt for the surviving marathon bombing suspect on Friday, April 19. Much of the Boston area was closed or in lockdown during the investigation and residents were asked to stay inside. <a href='http://www.cnn.com/2013/04/19/us/gallery/boston-ghost-town/index.html'>See all photography related to the Boston bombings.</a>

Summer Street in downtown Boston is empty as authorities hunt for the surviving marathon bombing suspect on Friday, April 19. Much of the Boston area was closed or in lockdown during the investigation and residents were asked to stay inside. See all photography related to the Boston bombings.