I see victimhood from him (takes one to know one....)
You gave him lots of money and where did it go?
His bad back ? well he could have mentioned it and as laurie says they would have given him any other task. I don't buy it.
It should be painful to realize you can't control him, or cure him. Doesn't matter how much energy or hopes others put into it. Put him in HP's hands Mambo.. and I am glad you are coping with this... and have support !!