Which musician retired too soon?


There are a number of people who used to record and who people enjoyed that are no longer out there for one reason or another. People like Syd Barret or Cat Stevens come to mind.

I know there are a lot of people that I wish had retired, but who would you like to have seen continue in the music industry, that left already?
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Gram Parsons
Jim Croce
Mike Bloomfield
I know they didn't "retire", but I wonder what they could've done under ideal conditions.
Bruce Lee! Oops, sorry...only music.

Anybody else think Stevie Ray was doing Robin Trower who was doing Hendrix? (And I don't mean in a sexual way.)