ORS 112.495: Reversions, vested remainders, contingent remainders and future interests.

(1) Property in which a slayer of a decedent, or an abuser of a decedent, owns a reversion or vested remainder subject to an estate for the lifetime of the decedent passes to the heirs or devisees of the decedent for a period of time equal to the normal life expectancy of a person of the sex and age of the decedent at the time of death. If the particular estate is owned by a third person for the lifetime of the decedent, the estate continues in the third person for a period of time equal to the normal life expectancy of a person of the sex and age of the decedent at the time of death.

      (2) As to a contingent remainder or executory or other future interest owned by a slayer of a decedent or an abuser of a decedent that becomes vested in the slayer or abuser or increased in any way for the slayer or abuser upon the death of the decedent:

      (a) If the interest would not have increased or become vested if the slayer or abuser had predeceased the decedent, the slayer or abuser is considered to have predeceased the decedent; and

      (b) In any case, the interest shall not be so vested or increased during a period of time equal to the normal life expectancy of a person of the sex and age of the decedent at the time of death.