This Monday, April 15, 2013 photo provided by Bob Leonard shows second 

This Monday, April 15, 2013 photo provided by Bob Leonard shows second from right, Tamerlan Tsarnaev, who was dubbed Suspect No. 1 and  third from right, Dzhokhar A. Tsarnaev, who was dubbed Suspect No. 2 in the Boston Marathon bombings by law enforcement. This image was taken approximately 10-20 minutes before the blast. (AP Photo/Bob Leonard)
Associated Press
This Monday, April 15, 2013 photo provided by Bob Leonard shows second from right, Tamerlan Tsarnaev, who was dubbed Suspect No. 1 and third from right, Dzhokhar A. Tsarnaev, who was dubbed Suspect No. 2 in the Boston Marathon bombings by law enforcement. This image was taken approximately 10-20 minutes before the blast. (AP Photo/Bob Leonard)
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