Nev. Rev. Stat. § 453.333
If the death of a person is proximately caused by a controlled substance which was sold, given, traded or otherwise made available to him or her by another person in violation of this chapter, the person who sold, gave or traded or otherwise made the substance available to him or her is guilty of murder. If convicted of murder in the second degree, the person is guilty of a category A felony and shall be punished as provided in subsection 5 of NRS 200.030. If convicted of murder in the first degree, the person is guilty of a category A felony and shall be punished as provided in subsection 4 of NRS 200.030, except that the punishment of death may be imposed only if the requirements of paragraph (a) of subsection 4 of that section have been met and if the defendant is or has previously been convicted of violating NRS 453.3385, 453.3387 or 453.339 or a law of any other jurisdiction which prohibits the same conduct.
NRS 453.333