Sucks. Bon Scott was immensely better for the band. Here's a more appropriate song for this board.
Alistair Kinnear found him and took him to hospital. Kinnear moved to AUS and has been living there in obscurity, but was recently interviewed by Jesse Fink for his book. No conspiracy there, but the Youngs definitely (and mistakenly) thought Bon was holding them back. His lyrics and vocals made that band. And he wrote BiB. His parents got all the royalties for BiB and Johnson got nothing for royalties from the album.