damn homie, it's times like this when you find out what is most important in life. the only suggestion i can really give is this: pray with him and hope that he truly accepts the Lord into his heart and life, he may make a miraculous recovery, or better yet, he could make it into the kingdom of heaven if he is sincere in his prayers. ask him not to necessarily pray to get better, but to be forgiven of his sins and tell him to invite the Lord into his heart so that you can be with him on the other side. he could end up to be a 100 y/o, but how long is that compared to eternity? think about it. stay up homie, times will be hard but my prayers are with you and your homeboy.