Hi Renee, it was very good of you to step in.
Well, you did what you could and I'm really sorry for this outcome.
You know the thing with alcoholism (and I'm sure you are very familiar with this) is not just the drinking, imo. Alcoholics tend to take very poor care of themselves in general, many have malnutrition, imagine having malnutrition in countries with so much food available. Poor eating habits, when they bother to eat at all, sleep is scarce etc etc.
Until they change their mindset about alcohol I honestly believe we have very little to no impact on that at all.
I really hope he can come back from this, try to keep good thoughts, reach out for support (from us and wherever you can get it!). Remember to focus on your own wellbeing.