None of the following persons may become heirs of the decedent:
次に掲げる者は、相続人となることができない。
a person who has received a criminal sentence for intentionally causing or attempting to cause the death of the decedent or the death of a person with an equal or prior place in the line of succession;
故意に被相続人又は相続について先順位若しくは同順位にある者を死亡するに至らせ、又は至らせようとしたために、刑に処せられた者
a person who knows that the decedent was killed by someone but made no formal accusation or criminal complaint about this; provided, however, that this does not apply if the person cannot discern right from wrong, or if the killer was that person's spouse or lineal relative;
被相続人の殺害されたことを知って、これを告発せず、又は告訴しなかった者。ただし、その者に是非の弁別がないとき、又は殺害者が自己の配偶者若しくは直系血族であったときは、この限りでない。
a person who has prevented the decedent from making, revoking, rescinding, or changing a will as regards succession, through fraud or duress;
詐欺又は強迫によって、被相続人が相続に関する遺言をし、撤回し、取り消し、又は変更することを妨げた者
a person who has forced the decedent to make, revoke, rescind, or change a will as regards succession, through fraud or duress; or
詐欺又は強迫によって、被相続人に相続に関する遺言をさせ、撤回させ、取り消させ、又は変更させた者
a person who forges, alters, destroys, or conceals the will of the decedent as regards succession.
相続に関する被相続人の遺言書を偽造し、変造し、破棄し、又は隠匿した者