43 CFR 30.503: What happens if an heir or devisee participates in the killing of the decedent?

Any person who knowingly participates, either as a principal or as an accessory before the fact, in the willful and unlawful killing of the decedent may not take, directly or indirectly, any inheritance or devise under the decedent's will. This person will be treated as if he or she had predeceased the decedent.