Mary-Ann Knott-Craig, of Watertown, Mass., right, and Dawn Sommerville, of the South Boston neighborhood, pause at the site of a makeshift memorial near the finish line of Monday's Boston Marathon in Boston, Wednesday, April 17, 2013. The bombs that blew up seconds apart near the finish line left the streets spattered with blood and glass, and gaping questions of who chose to attack at the Boston Marathon and why. (AP Photo/Charles Krupa)
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