Nkohli said more information would be released later.
Panayiotou orchestrated the murder of his wife, Jayde Panayiotou, in 2015 by hiring Sinethemba Nenembe and Zolani Sibeko to kill her.
Jayde's body was found in an open field near Uitenhage on April 22 that year. She had been shot three times.
In November 2017, Panayiotou was sentenced to life imprisonment for murder.
Sibeko, who was found guilty of conspiracy to commit murder, was sentenced to 15 years and Nenembe was sentenced to life for murder and an additional 15 years for robbery.