Follow up

I wanted to post the song that my dad mentioned. "Ohio" is a protest written and composed by Neil Young in reaction to the Kent State shootings of May 4, 1970, and performed by Crosby, Stills, Nash and Young. I agree that looking into the past is completely relevant, and this is just one example of the way that people gave a voice to victims of the times through music.

And here's a video of photos from that horrible indecent.  I recommend listening to the song above while these images play (the audio has been disabled).