I am sorry for your loss and none of my comments are meant to be critical of addicts, like your son.
I know that heroin or meth addiction is very tough to break. I’ve never even tried drugs, but I can see from before and after pics that addicts love drugs more than they fear death, which is what some here do not understand.
That’s why I support locking addicts away for months until they can get some sense of themselves back.
My ex-son-in-law told my daughter he would rather die than go to rehab. That was 11 years ago and he is still an addict, I have no idea how he is still alive.
Having an addict in the family is like a bomb going off in the middle of the family. It effects everyone in the family.