A sad situation but a fine, positive song. Joe Strummer recorded this as a demo for Johnny Cash, I guess with a view to it being recorded for one of the 'American' records.
Within a couple of years both had passed on.
The song is classic Strummer though - upbeat, with vivid words (as usually laying it on with a trowel), the chorus being 'You cast a long shadow' - I hear it as a tribute to Johnny Cash. It finishes off with the words 'there's always rock and ROLL!', which is kind of fitting.
I've only got this on a freebie with Uncut magazine - I dunno if its commercially available or not.