Dave, I am so sorry to hear of your loss. I can't even compose my thoughts. I talked to Al a lot, and he was so proud of you and your sister. He advised me quite a bit and to a substantial degree, he was confidant for me. I know I am a better person for having known him as a friend.
I wish I could be there for you right now.
You and Al, and your family, are all I will be thinking about.