(a) In case:

(1) Any member of a paid police or fire department who has been in continuous service for more than five years dies from any cause other than as specified in subsection (b) of this section before retirement on a disability pension under the provisions of, prior to July 1, 1981, section twenty-four of this article, or after June 30, 1981, sections twenty-three-a and twenty-four of this article or a retirement pension under the provisions of subsection (a) or both subsections (a) and (b), section twenty-five of this article, leaving in either case surviving a spouse, or any dependent child or children under the age of eighteen years, or dependent father or mother or both, or any dependent brothers or sisters or both under the age of eighteen years, or any dependent child over the age of eighteen years of age who is totally physically or mentally disabled so long as such condition exists; or

(2) Any former member of any such department who is on a disability pension prior to July 1, 1981, under section twenty-four of this article, or after June 30, 1981, under sections twenty-three-a and twenty-four of this article, or is receiving or is entitled to receive retirement pension benefits under the provisions of subsection (a) or both subsections (a) and (b), section twenty-five of this article, dies from any cause other than as specified in subsection (b) of this section leaving in either case surviving a spouse or any dependent child or children under the age of eighteen years or dependent father or mother or both, or any dependent brothers or sisters or both under the age of eighteen years, or any dependent child over the age of eighteen years of age who is totally physically or mentally disabled so long as such condition exists; then in any of the cases set forth above in (1) and (2) the board of trustees of such pension and relief fund shall, immediately following the death of such member, pay to or for each of such entitled surviving dependents the following pension benefits: To such spouse, until death or remarriage, a sum per month equal to sixty percent of such member's pension or, in the event such member was not receiving a pension at the time of his death, a sum per month equal to sixty percent of the monthly retirement pension such member would have been entitled to receive pursuant to section twenty-five of this article on the date of his death if such member had then been eligible for a retirement pension thereunder, or the sum of $300 per month, whichever is greater; to each such dependent child, a sum per month equal to twenty percent of such member's pension or, in the event such member was not receiving a pension on the date of his death, a sum per month equal to twenty percent of the monthly retirement pension such member would have been entitled to receive pursuant to section twenty-five of this article on the date of his death if such member had then been eligible for a retirement pension thereunder, or until such child attains the age of eighteen years or marries, whichever first occurs; to each such dependent orphaned child, a sum per month equal to twenty-five percent of such member's pension or, in the event such member was not receiving a pension at the time of his death, a sum per month equal to twenty-five percent of the monthly retirement pension such member would have been entitled to receive pursuant to section twenty-five of this article on the date of his death if such member had then been eligible for a retirement pension thereunder, until such child attains the age of eighteen years or marries, whichever first occurs; to each such dependent orphaned child, a sum per month equal to twenty-five percent of such member's pension or, in the event such member was not receiving a pension on the date of his death, a sum per month equal to twenty-five percent of the monthly retirement pension such member would have been entitled to receive pursuant to section twenty-five of this article on the date of his death if such member had then been eligible for a retirement pension thereunder, until such child attains the age of eighteen years or marries, whichever first occurs; to each such dependent father or mother, a sum per month for each equal to ten percent of such member's pension or, in the event such member was not receiving a pension on the date of his death, a sum per month equal to ten percent of the monthly retirement pension such member would have been entitled to receive pursuant to section twenty-five of this article on the date of his death if such member had then been eligible for a retirement pension thereunder; to each such dependent brother or sister, the sum of $50 per month until such individual attains the age of eighteen years or marries, whichever first occurs, but in no event shall the aggregate amount paid to such brothers and sisters exceed $100 per month. If at any time, because of the number of dependents, all such dependents cannot be paid in full as herein provided, then each dependent shall receive his pro rata share of such payments. In no case shall the payments to the surviving spouse and children be cut below sixty-five percent of the total amount paid to all dependents.

(b) The surviving spouse, child or children, or dependent father or mother, or dependent brothers or sisters, of any such member who dies by reason of service rendered in the performance of such member's duties shall, regardless of the length of such member's service and irrespective of whether such member was or was not entitled to receive, or was or was not receiving, disability pension or temporary disability payments at the time of his death, receive the death benefits provided for in subsection (a) of this section. If such member had less than three years' service at the time of his death, the member's pension shall be computed on the basis of the actual number of years of service.

(c) If a member dies without leaving a spouse, dependent child or children, or dependent father or mother, or dependent brothers or sisters, his contributions to the fund plus six percent interest shall be refunded to his named beneficiary or, if no beneficiary has been named, to his estate to the extent that such contributions plus interest exceed any disability or retirement benefits that he may have received before his death.

(d) The provisions of this section shall not be construed as creating or establishing any contractual or vested rights in favor of any individual who may be or become qualified as a beneficiary of the death benefits herein authorized to be made, all the provisions hereof and benefits provided for hereunder being expressly subject to such subsequent legislative enactments as may provide for any change, modification or elimination of the beneficiaries or benefits specified herein.

(e) Notwithstanding the provisions of section twenty-four of this article the benefit provided for in this section shall be calculated as if the member had remained unemployed throughout any period of disability.