Thank you all for your support. I am considering the letter form, but I have already begun writing a book about it as everyone that I have ever shared my childhood with has been blown away by the things I tell them and they are amazed I survived it, let alone have gone on to lead a relatively good and productive life. I've been encouraged by these very people to write it out into a book to share with the world in the hopes that it will raise awareness of the problems of alcoholism, the depths of depravity that alcoholic parents can sink to and what it means for their children. While it is hard, I am working through it and it is cathartic at times.
I just liked the "personal" aspect of writing a letter too. I thought it might help to bring closure to things because it is so personal. My hand and heart to theirs... even if he won't see it b/c he is dead.
Peace, Levi