Here are some of the resources used to develop Tuesday’s show:
AP PHOTOS: AP REVISITS BOSTON BOMBING SITES
Marathon Bombing Suspect Waits in Isolation
Report details missed chances ahead of Marathon attacks
Boston Marathon tribute unites survivors, first responders
Boston Marathon bombing anniversary: ‘A chance to move on from last year’
Solemn Tributes Mark Anniversary Of Boston Marathon Bombing
One Year Later: Josh Haner’s Pulitzer Winning Boston Marathon Bombing Photos and the “Terror War”
Alexis Stodghill