I read at Paul Slade's link from five years ago that the killing " took place just a few blocks from where Stagger Lee had killed Billy Lions four years before " and that Frankie and Johnnie and Stagolee "have always tended to get tangled up with one another " .

To me, "Hop Joint" -as sung by Mississipi John Hurt - sounds more closely related to Frankie and Johnnie than Stagolee does .
The Planet Slade article notes:
"There was a long razor scar down the side of her [Frankie's]face she got in her teens from a girl who was jealous of her. "

Hurt has a version of Stagolee , which may have been a bit like Frankie and Johnnie , but Hop Joint has these two lines :
I gotta brand new razor and a forty-four gun /gonna cut you if you stay here ,shoot you if you run