rugger
TheOrginalMiataGuy
Not sure if it has been mentioned, but dress up nice and go to any/all services or viewings that are published publicly. You won't have to say anything but he will know.
I worked for a boss for just a short period when his son was killed in a wreck. I attended the funeral and paid my respects. It floored him that I took off of work and showed up. It sealed a very long and solid work relationship and friendship.