Ohio Rev. Code Ann. § 3309.44
(A) As used in this section and in section 3309.45 of the Revised Code:
(C) Except as provided in division (C)(1) of section 3309.45 of the Revised Code, if a member dies before service or commuted service retirement and is not survived by a designated beneficiary, the following shall qualify, in the following order of precedence, with all attendant rights and privileges, the member's:
(D) Any amount due any person, as an annuitant receiving a monthly service or commuted service retirement allowance or benefit, and unpaid to the annuitant at death, shall be paid to the beneficiary designated in writing on a form provided by the retirement board, signed by the annuitant and filed with the board. If no such designation has been filed, such amount shall be paid, except as otherwise provided in section 3309.45 of the Revised Code, in the following order of precedence to the annuitant's:
(G) As used in this division, "recipient" means an individual who is receiving or may be eligible to receive an allowance or benefit under this chapter based on the individual's service to an employer. If the death of a member, a recipient, or any individual who would be eligible to receive an allowance or benefit under this chapter by virtue of the death of a member or recipient is caused by one of the following beneficiaries, no amount due under this chapter to the beneficiary shall be paid to the beneficiary in the absence of a court order to the contrary filed with the retirement board:
(1) A beneficiary who is convicted of, pleads guilty to, or is found not guilty by reason of insanity of a violation of or complicity in the violation of either of the following: