I will enter this debate primarily because I don't have enough sense to stay out.

I see the foreshadowing point. But songs are short things and sometimes it's hard to work it all in.
In the case of the son killing the dad without being foreshadowed, it is not a problem for me because my mind fills in that gap with a million stories, personal and public that I have heard in my life. There's that shadow on any story.

One manner to tie it together at the end might be to paraphrase that...the gunslinger's blood ran so cold in his son's veins, that it killed him. Bad seed and all that. It's what I took from the story.

There you have it. Don't nobody hate on me for writing that. Y'all hear. wink

https://soundcloud.com/sunset-poet-of-texas