I hadn't heard about this, and I have never heard the song - but I just cried through that entire video, including the interview with him afterwards. I tend to cry over anything emotional, but I'm in the middle of picking a father/daughter song for my Disney wedding, and this just hit me very hard.
This would be the perfect song, but I could not get past my grief for the family in order to enjoy the moment with my own father. I feel so terrible for them - my heart broke.
Thank you for sharing that link. My prayers go out to the Chapman family as well. I just called my parents to say hello, something I should do more often.