A memorial to 2013 Boston Marathon bombing victim Martin Richard, right, sits alongside those for bombing victims Lu Lingzi, Krystle Campbel and for MIT officer Sean Collier, allegedly killed by the ... more 
A memorial to 2013 Boston Marathon bombing victim Martin Richard, right, sits alongside those for bombing victims Lu Lingzi, Krystle Campbel and for MIT officer Sean Collier, allegedly killed by the bombing suspects, near the starting line of the 118th Boston Marathon Monday, April 21, 2014 in Boston. (AP Photo/Robert F. Bukaty) less 
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Associated Press | Photo By Robert F. Bukaty
Mon, Apr 21, 2014 8:21 AM EDT