John Kasich made an unusual request of the Ohio Parole Board. The governor received a letter from a juror in a capital punishment case going back two decades. The juror explained that he had discovered the public record now contains more information about the case than was presented to the jury. He told the governor he would have opposed a death sentence if he had known the additional information.

It takes just one juror to prevent a death sentence.

So, in February, the governor asked the parole board to take another look at the clemency application of Raymond Tibbetts. One month earlier, the board had rejected clemency, by an 11-1 vote.

On Friday, the board reaffirmed its view. It denied clemency, arguing it wasn’t persuaded the juror would have taken a different position on the death sentence. It found the heinousness of the crime still outweighed the mitigating evidence. Thus, it falls to the governor to correct an injustice.

Tibbetts committed a vicious double murder. He belongs in prison for the rest of his life. The process broke down as jurors decided whether he should be executed. They did not hear available mitigating evidence, largely because the defense attorneys fell short in their job. They presented an inadequate portrait of Tibbetts and his awful life growing up.

His parents were poor and addicted to drugs and alcohol. The neglect and abuse were so severe Tibbetts and his siblings were placed in foster care, where circumstances got worse. The children were ill fed, faced physical punishment, such as standing against a wall for hours and forced to urinate on themselves overnight.

No surprise Tibbetts turned to drugs or that he never received appropriate treatment for his mental illness. He did gain sobriety for a time. He had a family and a job. Then a work injury triggered a downward spiral, an opioid prescription resulting in renewed drug use. Soon, he brutally killed his wife and the man who owned the house where the family lived.

The prosecution invited the impression that Tibbetts’ siblings fared well enough in their lives and that foster care proved a good thing. The full record indicates that neither is true.

By law, the state urges much care in conducting the death penalty. That is because of the stakes, the state, in the name of the public, in position to take a life. So jurors must hear evidence on both sides to determine whether death is appropriate. In the Tibbetts case, jurors did not receive a complete account of the abuse.

Would the additional information have changed the result? The parole board doesn’t think so. Yet to get there, it must discount what an actual juror took the time and effort to inform the state.

As the juror reminded the governor, the state asks Ohioans to fulfill a civic duty in sitting on juries. He added that the state has a corresponding duty to get the process right. It didn’t do so in the Tibbetts case. Now the governor can make the just repair, a death sentence becoming life without parole.