A man takes a photo of a message tree at an exhibit entitled "Dear Boston: Messages from the Marathon Memorial" at the Boston Public Library in Boston, Monday, April 7, 2014. Messages of resilience, ... more 
A man takes a photo of a message tree at an exhibit entitled "Dear Boston: Messages from the Marathon Memorial" at the Boston Public Library in Boston, Monday, April 7, 2014. Messages of resilience, solidarity, hope and love are embodied at the memorial exhibit commemorating the anniversary of the Boston Marathon bombings. (AP Photo/Elise Amendola) less 
1 / 1
Associated Press | Photo By Elise Amendola
Mon, Apr 7, 2014 4:03 PM EDT