Top Pictures of the Week

<div class="meta image-caption"><div class="origin-logo origin-image "><span></span></div><span class="caption-text">Police officers aim their weapons Friday, April 19, 2013, in Watertown, Mass. A tense night of police activity that left a university officer dead on campus just days after the Boston Marathon bombings and amid a hunt for two suspects caused officers to converge on a neighborhood outside Boston, where residents heard gunfire and explosions.&#40;AP Photo&#47;Matt Rourke&#41; (AP Photo&#47; Matt Rourke)</span></div>
September 10, 2013 5:20:06 AM PDT