BENEFICIARY OF SUPPLEMENTAL DEATH BENEFIT.

(a) Unless a member has directed otherwise on a form prescribed by the board of trustees and filed with the retirement system:

(1) a supplemental death benefit under Section 854.603 is payable to the person entitled to receive the decedent's accumulated contributions; and

(2) a supplemental death benefit under Section 854.604 is payable to a person entitled to receive any remaining payments of the decedent's annuity.

(b) If a person entitled under this section to receive a supplemental death benefit does not survive the member or retiree covered by the supplemental death benefit program, the benefit is payable to the estate of the covered member or retiree.

(c) If a member or retiree who has designated a beneficiary to receive supplemental death benefits under Section 854.603 or 854.604 subsequently designates a different beneficiary to receive other benefits under this subtitle in the event of the death of the member or retiree, the supplemental death benefits shall be paid to the subsequently designated beneficiary unless the member or retiree contemporaneously or subsequently designates another beneficiary to receive the supplemental death benefit.