I looked this up on Google and apparently (ironically) his final promise was "to be a better father from that day forward."

Which.....was the promise to start AFTER he murdered his son, like the next day?

This never sat right with me, the whole thing about his son dying and "Tears From Heaven" etc., just didn't ring true even way back then, so it'd be believable that he sacrificed his son and his payoff was the revamping of his career completely and the ASTRO profits from that song, which I've always hated, it seemed like bullshit from day one.

EDIT : It's in the posted article too, but it looks like a little blurb in between pictures, not part of the article.