(((Nikki)))
Dear Nikki, you don't have to tell people that you lost your dad to depression (or anything else), you just need to tell them that you lost your dad.
It's difficult for me to put into words what I'm trying to say to you right now. I really wish you hadn't read the report at all. I think it's absolutely natural for a person to feel the need to know "why" as if that will help in some small way. That's the BIG question... the one most people never will know and the one that will never make much sense at all.