divineseraph
Buy I have seen laws in which the actual DEATH of the person, as in, pulling the plug, cannot be decided by anyone but the person in question. They have to sign a form in release saying either" Keep me alive" or "Let me die", and if they did not put in any information, they are to be kept alive. At least in New Hampshire.

Other decisions, like wether or not to do a risky operation, can be made by the spouse or relative, but not death.

Here in Florida, your spouse usually has the right to make those decisions for you, if you are incapable.
If you have no spouse, it usually falls on your closest relative.

Remember Terri Schaivo!