April 15, 2013 The Boston Marathon bombing, a terrorist attack that took place during the annual Boston Marathon. Three people were killed and hundreds injured.
Boston Marathon bombing from Wikipedia    https://en.wikipedia.org/wiki/Boston_Marathon_bombing

SONGS ABOUT THE BOSTON MARATHON BOMBING
I DON’T HAVE A SONG FOR THAT   -  Ben Johnston and Jordan Lucero     https://www.youtube.com/watch?v=7-9rN8rJkXM
NEW BEGINNING -   Noah Guthrie     https://www.youtube.com/watch?v=n1YBtDcRnXA
4 -15-13  -  Dropkick Murphys     https://www.youtube.com/watch?v=YjsXEpVc8w0