DEfinitely it's "where did you go wrong?" This was one of my favorite songs in junior high school -- off one of the first albums I ever owned -- a birthday gift from a godmother who liked parody right up to Mark Russell. Go figure!

I think after the line about "You've killed...old buddy" It echoes with a prolonged drawn out "OOoolllllllld buddy" instead of "gunslinger"

I have the album but my turntable's not set up! ARRGH!