Dan, some questions cant be answered. I can tell you something from a personal experience. When i was 14yo i begged the Lord for my grandmother's life when she was in the hospital dying. I got really mad at God about all that and that lead to the worst 15 years of my life. I dont know why your dad is going through all he is. I can say im sorry and i will pray fro him and you. I watched my daddy die a few years ago and i know how hard that is. If there was any way i could help you or your dad, i would.