RSA 562-A:3: Revocation of Benefits Under Governing Instruments.

The murder of the decedent:

I. Revokes any revocable:

(a) Disposition or appointment of property made by the decedent to the killer in a governing instrument;

(b) Provision in a governing instrument conferring a general or nongeneral power of appointment on the killer; and

(c) Nomination of the killer in a governing instrument nominating or appointing the killer to serve in any fiduciary or representative capacity, including as a personal representative, executor, trustee, or agent; and

II. Severs the interests of the decedent and killer in property held by them at the time of the murder as joint tenants with the right of survivorship, transforming the interests of the decedent and killer into equal tenancies in common.