459.055 Chapter 459 shall be interpreted consistent with certain principles, including that nothing in chapter 459 shall impair the patient's right to make medical decisions, and that chapter 459 does not create any presumptions for persons who have not signed declarations on whether or not they want care. Any person may file a petition for the appointment of a guardian for an incapacitated person. 475.120.2 A guardian shall act in the best interest of the ward. However, in the capacity of a surrogate exercising the person's own right to autonomy, a person who happens to be a guardian may terminate treatment according to the patient's own wishes, demonstrated by clear and convincing evidence. Knowingly assists another in the commission of self-murder.
Voluntary manslaughter is a class B felony.