Prince William County Commonwealth's Attorney Paul Ebert has sent more than a dozen criminals to death row, but Tuesday could be the first time he watches one take his last breath.

Unless the U.S. Supreme Court or Gov. Timothy M. Kaine step in, Ebert will witness the execution of Paul Warner Powell.

Powell would be the ninth inmate Ebert has sent to his death. Four others he prosecuted, including Washington-area sniper John Muhammad, await execution.

Powell was convicted of killing 16-year-old Stacie Reed, but the Virginia Supreme Court overturned that verdict. Powell then wrote a taunting letter to prosecutors detailing the crime because he thought he no longer could be charged. He was convicted again in 2003.

Powell chose to die by electrocution.