National Guard and Boston police man a barricade in front of the medical tent near the finish line in Boston Tuesday, April 16, 2013 where some of the wounded were treated in yesterday's explosions at... more 
National Guard and Boston police man a barricade in front of the medical tent near the finish line in Boston Tuesday, April 16, 2013 where some of the wounded were treated in yesterday's explosions at the Boston Marathon. (AP Photo/Winslow Townson) less 
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Associated Press | Photo By Winslow Townson
Tue, Apr 16, 2013 5:45 PM EDT