A person who, without lawful authority, possesses, uses, threatens, or attempts or conspires to possess or use a weapon of mass destruction in furtherance of an act of terrorism is guilty of a felony and upon conviction:
(1) in cases resulting in the death of another person, must be punished by death or by imprisonment for life; or
(2) in cases which do not result in the death of another person, must be punished by imprisonment for not less than twenty-five years nor more than life.