Wow B, I just can believe this is happening to your family again.
I don't know the answer either and find it unfair how some people get cancer and never smoke, some people have liver problems and don't drink and the list goes on and on. They say everything happens for a reason and that God has a purpose for everyone, but some times it just doesn't make any sense. We're told to believe and put our trust in God, and I guess that is what we have to do. We must be needed in heaven for a reason, so I can only hope that there is a reason for this to be happening to your family.
You and your family are in our thoughts B.
Joey & Paul