I think the reason his funeral is important to him is because he is a policeman. The funerals of men in service are normally very well covered by the media if they are killed in the line of duty especially. If no one was at his funeral, I wonder if he feels that people will think badly of him? I am sure colleagues would at least be there, right?
Very sad. He probably is still under some influence. Nice of you to hang out with him for that time.