It's, unfortunately, nothing new.
Fifteen years ago, or so, a good friend (he plays bass) got a panic call from a big name Blues-Rock band. Both their keyboard and bass player were in Rehab for Heroin addiction. They were about to embark on a Europe/Asia tour. They needed some tour players.
The "chick singer" was also addicted, but they could not replace her or, they would have had to forfeit the contract....Bad Financial Move.
I epoxied Two Ounces of Heroin into two different (phony) reverb tanks of their Hiwatt and Dr Z guitar amps.....just to get the girl through the tour. She supposedly had a source for Methadone in France, but she would still need "help".
One of their road crew had to beat the reverb tanks with a 5 pound sledge to get at the dope.....which were wrapped in vacuum sealed bags and encased in Crisco.
I was telling my sister about it, and she was shocked.
THREE people in ONE band...??
I told her it was not like three out of five people in her office were addicted.....this is a Rock Band. Its a whole different world...like Hollywood. They live a faster and looser life.
Rock & Roll baby. The things people do.....
