Comic fulfills dream to appear on Letterman's show

I watched this stand-up performance by comic Steve Mazan the other night on The Late Show. I thought he was very funny and he went over well with the crowd. Only today did I realize he has inoperable cancer and his life's dream was to appear on the show.

He's making a documentary of his quest, Dying To Do Letterman. I can't imagine the emotions that were going through him as he did his set.