This is one of those times where I feel sad because I can't relate all that well to addiction. I was always a "good boy" growing up. The "don't do drugs" campaign of the 90's worked on me pretty well. No one particularly close to me has an addiction, so I've heard stories, but I never got to witness people struggling. A lot of my friends did drugs and kinda "outgrew it" when the rebellious college days of raging parties were over.
It doesn't make drug addiction deaths any less sad for me. It's loss of human life and there are many emotions to overcome. That I CAN relate to.
Please let kava, your family, and friends to help you heal with your brother's passing.
Edit: I feel like in the "Like" Reaction button, there should be a Cross, or a Tombstone, or even the Letter F emoticon/emoji to express condolences.