The Oklahoma Pardon and Parole Board denied clemency for James L. DeRosa, 36, Friday morning with a 3-2 vote during a special meeting in Oklahoma City.
DeRosa was sentenced to death in the murders of Curtis and Gloria Plummer. The Plummers were found dead inside their home in October 2000, stabbed multiple times and with their throats cuts.
An investigation into the murders hastened along after accomplice Scotty White, now 29, informed a school counselor he knew who murdered the Plummers.
White named Derosa and John Eric Castleberry, now 39.
The three men were arrested in connection with the murders and subsequently tried and convicted in LeFlore County.DeRosa received two death sentences, Castleberry two life sentences without parole and White, received two twenty-five year sentences with the last seven years on probation.
DeRosa is scheduled to be executed on June 18.