Hi Bob, I am so sorry for the huge loss of your friend. He seemed like such a beam of light. This life is fleeting. We never know how long any of us has to be a part of this great journey. I know this pain exclusively, I recently lost my Mother.. a year ago. And it seems like yesterday. The anniversary is actually on the 30th. How quickly time flies.
The best advice I can give is live life like it is your last day. Live to the fullest. Be good to yourself. Be good to others. Give to those others the love you have inside, some have never experienced it. Because, what might seem like the end is just the beginning.