He was convicted and sentenced to death by hanging by the State High Court sitting in Port Harcourt on Monday.
Okoroafor was sentenced for killing 3 people, including the choir mistress of his church, whom he impregnated.
The trial judge, Justice S. O. Benson, in his judgment said the evidence and confessional statement by Okoroafor proved that he murdered the choir mistress, Orlunma Nwagba, her friend, Chigozie Ezenwa alongside her daughter, Cresabel Ezenwa.
Justice Benson ruled that the pastor should be killed by hanging or by lethal injection.
Operatives of the Rivers State Police Command had on December 17, 2018, arrested Pastor Okoroafor following an alarm raised by the husband of the late Ezenwa.
The victims were killed by the pastor on December 11, 2018, at two different locations in a community in Oyigbo Local Government Area.