A person who unlawfully kills another under any of the following circumstances is guilty of murder: (1) If the offender intends to cause the death of the person killed or that of some other person. Under this heading, the prosecution is bound to prove beyond reasonable doubt: (a) that the deceased died; (b) that the death of the deceased resulted from the act of the accused; (c) that the act of the accused was intentional with the knowledge that death or grievous bodily harm was its probable consequence. See Section 316(1) of the Criminal Code Cap 30 Vol. II Laws of Eastern Nigeria 1963 as applicable in Imo State of Nigeria under which the appellant was charged, tried, convicted and sentenced to death. See also Offorlete v. The State (2000) 80 LRCN 26 20; Effiong v. The State (1998) 59 LRCN 39 61; Richard Igago v. The State (1999) 73 LRCN 3502 at 3535. (2) If the offender intends to do to the deceased or to some other person some grievous harm. See Section 316(2) of the Criminal Code (supra); R v. Dim (1952) 14 WACA 154; R v. Adi (1955) 15 WACA 6. (3) If death is caused by means of an act done in the prosecution of an unlawful purpose, which act is of such a nature as to be likely to endanger human life. The unlawful act need not be a felony so long as it is likely to endanger human life. See Section 316 of the Criminal Code (supra); Obayi Asa v. The State (1976) 7 SC 173; Idowu v. The State (2000) LRCN 2788; R v. Attah (1961) 1 All NLR 590. (4) If the offender intends to do grievous harm to some person for the purpose of facilitating the commission of an offence which is such that the offender may be arrested without a warrant, or for purpose of facilitating the flight of an offender who has committed or attempted to commit any such offence. (5) If death is caused by administering any stupefying or overpowering things for either of the purposes in (4) above. (6) If death is caused by willfully stopping the breath of any person for either of such purpose. See Section 316(6) of the Criminal Code (supra).
— N.S. Ngwuta, JSC. Henry Nwokearu V. The State (SC.227/2011, 24 MAY 2013)