Fred Rogers ("Mister Rogers") in a 1999 interview (full version) said:

You know, my mother used to say, a long time ago, whenever there would be any real catastrophe that was in the movies or on the air, she would say, "Always look for the Helpers. There will always be Helpers, you know, even just on the sidelines." That's why I think that if news programs could make a conscious effort of showing rescue teams, of showing medical people, anybody who is coming into a place where there's a tragedy — to be sure that they include that — because if you look for the Helpers, you'll know that there's hope.

... as for example, in this photo by John Tlumacki taken moments after the 2013 Boston Marathon bombing:

(cf The Defenders (2002-05-27), ...) - ^z - 2019-12-01