So much speculation about what is going on, who knows how much is true? Some sources on here have proven to be pretty reliable. But since the discussion has shifted to drugs / alcohol etc.
When it comes to substances (most of them anyway), some people can use them recreationally and some people can't
For those who can't, things can eventually get out of control leaving a wide swath of wreckage in their personal lives and collateral damage for those around them
Substance abusers aren't bad people, they just have a problem that needs THEIR attention. No matter how much we love them or want to help them, they have to address THEIR issue.
Substance abuse and addiction issues aren't addressed or fixed in a week. It takes a while. God Bless all those who are struggling. May they, and those around them, get the help they need.