Wow...fallingwater! I'm so sorry about your brother!! I am super close to mine and to loose him would be horrible! Even though we are both grown and live in different parts of the US....I still consider us close!
I do have a bio-brother that died before I met him. He was killed in a drunk driving accident. I think that stinks! But I know to lose the one I know....have had a relationship with....would be something I could hardly bare!
Feel free to pm if you would like to talk.