PHOENIX (AP) -
The Arizona Supreme Court has concluded that a man was mentally disabled and cannot be executed for murdering his 2-year-old daughter by dousing her with gasoline and setting her on fire.
The state Supreme Court's unanimous ruling Wednesday overturns Shawn Ryan Grell's death sentence by reducing it to natural life in prison.
Grell was convicted of the Dec 2, 1999, murder of Kristen Grell in the desert near Mesa.
The court's ruling say the killing was "horrific" and devastating to the family but that Grell's sentence must be reduced.
The justices said that's because the U.S. Supreme Court has ruled that it would be constitutionally prohibited cruel and unusual punishment to execute someone with mental retardation.
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