Who is Mr. J from On Death and Dying and what is their importance?

Mr. J's case is used as an example of hope in Chapter VIII. He exemplifies the person who never gives up, even at the very end of his life. Although he is aware his illness is terminal, Mr. J feels he had a good life and reviews in his mind the pleasant things about his childhood. He also recognizes what he called "bonus" days. He knows his good and bad times come in cycles, and feels lucky when he goes into remission. He also hopes for a drug that might relieve his suffering, and is hopeful until the day he dies.