Texas Government Code - GOV'T § 864.006. Member Service Death Benefits

(a) The surviving spouse and dependents of a member who dies as a result of performing emergency services or support services are entitled to receive in equal shares a death benefit annuity equal to the service retirement annuity that the decedent would have been entitled to receive if the decedent had been able to retire, vested at 100 percent, on the date of the decedent's death.

(b) The beneficiary of a member who dies as a result of performing emergency services or support services is entitled to a lump-sum benefit of $5,000 or a greater amount that the state board provides by rule.