Georgia's parole board has denied clemency to a man set to be executed Thursday at the state prison in Jackson.
Marion Wilson Jr. was convicted of murder in the 1996 slaying of off-duty corrections officer, Donovan Corey Parks in Milledgeville.
Prosecutors said Wilson and another man, Robert Earl Butts Jr., killed Parks and stole his car after asking him for a ride at a Walmart.
Wilson's lawyers had claimed a prosecutor asked jurors to sentence Wilson to death because he was the triggerman. Wilson has denied that since his arrest.
They said the same prosecutor then asked a separate jury to sentence Butts to death because he fired the gun. Butts was executed in March 2018.
The State Board of Pardons and Paroles is the only authority in Georgia that can commute a death sentence.
Wilson will be the second Georgia inmate executed this year.
There are currently 48 men and one woman on death row.