He was convicted in 1986.
Public defender rebuts claims that Ronald Ray Phillips didn't struggle after a 3-drug lethal cocktail was administered.
Ronald Phillips, who was sentenced for the rape and murder of a child in 1993, will be the first person put to death in the state since a controversial execution in 2014.
Arkansas plans to execute one more man before before its supply of midazolam expires at the end of the month.
It was the first execution in Florida since the U.S. Supreme Court ruled a controversial drug constitutional.