Fl state law. Of course, you won't like or accept that answer, either, since it goes against a "god given right," right?
Please cite the law that the judge has invoked to give him the right to deprive Terri of her means of life. I challenge you to find it. He could order that her husband be guardian, but it would be pure subjective interpretation for him to read into that his authority to pull her feeding tube. He has overstepped his authority.