Vacco v. Quill
The Court also wrote that there is no "fundamental" right to die in the Constitution.  Because of this, laws that make physician-assisted suicide illegal do not violate terminally ill people's Constitutional rights.  The Court added that the law allowed everyone to refuse treatment, and banned everyone from assisting suicide.  This was equal treatment, and did not violate the Equal Protection Clause of the Fourteenth Amendment, the decision said.