Boston University student Joy Liu places a note at a memorial on the campus for Boston Marathon bombing victim Lu Lingzi in Boston Wednesday, April 17, 2013. Lu and two friends had been watching the ... more 
Boston University student Joy Liu places a note at a memorial on the campus for Boston Marathon bombing victim Lu Lingzi in Boston Wednesday, April 17, 2013. Lu and two friends had been watching the Boston Marathon near the finish line. (AP Photo/Winslow Townson) less 
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Associated Press | Photo By Winslow Townson
Wed, Apr 17, 2013 4:09 PM EDT