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Boston Marathon Explosion Pictures

<div class="meta image-caption"><div class="origin-logo origin-image kabc"><span>KABC</span></div><span class="caption-text">An armed guard patrols the street in Boston on Tuesday, April 16, 2013, three blocks away from where a bomb went off during the 2013 Boston Marathon on Monday, April 15, 2013.  (David Ono)</span></div>
April 16, 2013 8:18:08 AM PDT