Okla. Stat. tit. 21, § 694

A. The rules of the common law distinguishing the killing of a master by his servant and of a husband by his wife as petit treason are abolished and these offenses are deemed homicides, punishable in the manner prescribed by Section 691 et seq. of this title. B. The rule of the common law providing that a death occurring after a year and a day from the date of a criminal corporal injury is irrebuttably presumed not to be the result of that injury is abolished.