Depends on his life, and your relationship, but I love "Forgiveness's Embrace" and know it's been done at funerals. It's by Stephen Schwartz, and you can find it on his album "Uncharted Territory"
I'm so sorry for your loss.
Madame Morrible: "So you take the chicken, now it must be a white chicken. The corpse can be any color. And that is the spell for lost luggage!" - The Yellow Brick Road Not Taken