FILE – This undated file photo provided by the Ohio Department of Rehabilitation and Correction shows death row inmate Ronald Phillips, convicted of the 1993 rape and murder of his girlfriend's 3-year-old daughter in Akron, Ohio. In a brief filed Monday, July 24, 2017, at the U.S. Supreme Court, 15 pharmacology professors argue the impending execution of Phillips should be stopped on grounds that the sedative midazolam is incapable of inducing unconsciousness or preventing severe pain. (Ohio Department of Rehabilitation and Correction via AP, File)
FILE – This undated file photo provided by the Ohio Department of Rehabilitation and Correction shows death row inmate Ronald Phillips, convicted of the 1993 rape and murder of his girlfriend's 3-year-old daughter in Akron, Ohio. In a brief filed Monday, July 24, 2017, at the U.S. Supreme Court, 15 pharmacology professors argue the impending execution of Phillips should be stopped on grounds that the sedative midazolam is incapable of inducing unconsciousness or preventing severe pain. (Ohio Department of Rehabilitation and Correction via AP, File) Credit: Uncredited

Ohio puts child killer to death in 1st execution in 3 years