I've read some New Age books saying that those who commit suicide go directly back into reincarnation because they cut short this life's plan. I don't believe in this personally, because I don't think everyone gets a happy ending. I believe we all can achieve a happy ending, but I digress...
As for Kurt, I dunno. It would be interesting to know who is still around. In my theory, ghosts are somewhat eternal -- being a mixture of group thoughtform and embedded energy from the person that was -- so they can be contacted for ages. I define spirits as acting of their own will, free to come and go as they please (not haunting a place). So, his spirit may have moved on but his ghost may linger. *shrug*