An observation:

When someone passes, don’t ask the family what happened 

If they feel comfortable with you, they’ll open up without you asking 

If not, it’s none of your business 

Friend I haven’t spoken with in a while called…blah blah…was just waiting for it…Then he asked

I know what’s it’s like on all sides - I’ve lost friends that were young, one of my first thoughts was what the heck happened?

Now that I’m on this end, can confidently say: don’t ask. Doesn’t matter, person is gone. Pay your respects, support the family.