10. Incompetence to succeed by reason of unworthiness to succeed.

(a) A person convicted for the commission of murder of, or attempt to murder, the estate leaver or his spouse, descendant, ascendant, adopter or adoptes;
(b) A person convicted for defamation of the persons specified in the preceding clause or for giving false evidence against the aforementioned persons in relation to an offence punishable with rigorous imprisonment for not less than two years, whatever its nature;
(c) A person who, by deceit or coercion, induced the estate leaver to make, revoke or modify a will, or obstructed him from doing so;
(d) A person who has fraudulently spirited away, concealed, destroyed or suppressed a will, before or after the death of the estate leaver, or has benefited himself by any of his above mentioned acts.