A Law enforcement official walks with a bomb-sniffing dog outside the federal courthouse prior to arraignment for Boston Marathon bombing suspect Dzhokhar Tsarnaev Wednesday, July 10, 2013, in Boston.... more 
A Law enforcement official walks with a bomb-sniffing dog outside the federal courthouse prior to arraignment for Boston Marathon bombing suspect Dzhokhar Tsarnaev Wednesday, July 10, 2013, in Boston. The April 15 attack killed three and wounded more than 260. The 19-year-old Tsarnaev has been charged with using a weapon of mass destruction. (AP Photo/Steven Senne) less 
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Associated Press | Photo By Steven Senne
Thu, Jul 11, 2013 2:42 AM EDT