86.287.  Accidental death benefit — dependents' allowances. — Upon the receipt by the board of trustees of evidence and proof that the death of a member was the natural and proximate result of an accident occurring at some definite time and place while the member was in the actual performance of duty and not caused by negligence on the part of the member, there shall be paid in lieu of the benefits pursuant to sections 86.280 to 86.283:

  (1)  Effective October 1, 1999, a pension to the surviving spouse until the surviving spouse dies of seventy-five percent of the deceased member's average final compensation plus fifteen percent of such compensation to, or for the benefit of, each unmarried dependent child of the deceased member, who is either under the age of eighteen, or who, regardless of age, is totally and permanently disabled and incapacitated from engaging in a gainful occupation sufficient to support himself or herself;

  (2)  Any surviving spouse or unmarried dependent child receiving benefits pursuant to this section immediately prior to October 1, 1999, shall upon application to the board of trustees be made, constituted, appointed and employed by the board of trustees as a special consultant on the problems of retirement, aging and other matters while the surviving spouse or unmarried dependent child is receiving such benefits, and upon request of the board of trustees shall give opinions in writing or orally in response to such requests as may be required.  Beginning October 1, 1999, for such services as may be required, a surviving spouse shall receive additional monthly compensation equal to the amount which when added to the benefits the surviving spouse was receiving pursuant to this section prior to October 1, 1999, will increase the surviving spouse's total monthly benefit payment pursuant to this section to seventy-five percent of the deceased member's average final compensation, and there shall be payable an additional monthly compensation of one hundred dollars or five percent of the member's average final compensation, whichever is greater, for each unmarried dependent child of the member;

  (3)  If no surviving spouse benefits are payable pursuant to subdivisions (1) and (2) of this section, such total pension as would have been paid pursuant to subdivisions (1) and (2) of this section had there been a surviving spouse shall be divided among the unmarried dependent children under age eighteen and such unmarried dependent children, regardless of age, who are totally and permanently disabled and incapacitated from engaging in a gainful occupation sufficient to support themselves.  The benefit shall be divided equally among the eligible dependent children, and the share of a child who is no longer eligible shall be divided equally among the remaining eligible dependent children; provided that not more than one-half of the surviving spouse's benefit shall be paid for one child;

  (4)  If there is no surviving spouse or unmarried dependent children of either class mentioned in subdivision (3) of this section, then an amount equal to the surviving spouse's benefit shall be paid to the member's dependent father or dependent mother to continue until remarriage or death;

  (5)  No benefits pursuant to this section shall be paid to a child over eighteen years of age who is totally and permanently disabled if such child is a patient or resident of a public-supported institution, nor shall such benefits be paid unless such disability occurred prior to such child reaching the age of eighteen;

  (6)  Wherever any dependent child designated by the board of trustees to receive benefits pursuant to this section is in the care of the surviving spouse of the deceased member, such benefits may be paid to such surviving spouse for the child;

  (7)  Any benefit payable to, or for the benefit of, a child or children under the age of eighteen years pursuant to subdivisions (1) to (3) of this section shall continue to be paid beyond the age of eighteen years through the age of twenty-two years in those cases where the child is a full-time student at a regularly accredited college, business school, nursing school, school for technical or vocational training, or university, but such extended benefit shall cease whenever the child ceases to be a student.  A college or university shall be deemed to be regularly accredited which maintains membership in good standing in a national or regional accrediting agency recognized by any state college or university;

  (8)  In the event a surviving spouse receiving death benefits as a result of a prior marriage to a deceased member subsequently remarries another member who also predeceases the surviving spouse, the surviving spouse shall receive a single death benefit pension, which, upon application to the board of trustees, shall be computed under subdivision (1) of this section using the highest of the average final compensations of the deceased members to which the surviving spouse was previously married;

  (9)  Beginning on August 28, 2023, any surviving spouse that had, prior to August 28, 2023, become ineligible for benefits under subdivisions (1) and (2) of this section as a result of remarrying shall, upon application to the board of trustees, have reinstated all future benefits under subdivisions (1) and (2) of this section.  Any such reinstatement shall be as to future benefits only and shall not be retroactive prior to August 28, 2023.