Okoko, who was also the president of the Conference of Ethnic Nationalities in Niger Delta, died on Sunday at a hospital in Port Harcourt.
He hailed from Obunagha community in the Yenagoa Local Government Area of Bayelsa State.
Okoko’s demise occurred six months after the passing of his billionaire-businessman son and former governorship aspirant on the platform of the Peoples Democratic Party, Keniebi, who was 42.
His son, Ebitimi, confirmed the death of the Pro-Chancellor, University of Uyo.
He said, “He died about 5 pm on Sunday. He has been sick. He was 80.”