Right off the top of my head, I can only think of Colorado as the only state that made changes directly from the events of Newtown. Any others?
New York and Connecticut come to mind as well.
When I despair, I remember that all through history the ways of truth and love have always won. There have been tyrants, and murderers, and for a time they can seem invincible, but in the end they always fall. Think of it--always.