The suspects, who reportedly murdered the victim after receiving a ransom of N1.5 million, are currently facing charges at a magistrate court in Port Harcourt.
Charles Worlu, a brother of the deceased, said all the family wanted was justice.
Worlu said the kidnappers made the family pay them ransom twice, the first being one million naira and the second time, five hundred thousand naira, and still murdered him.
The corps member was serving in Imo State before his abduction at Rumuokoro roundabout in Obio Akpor local government area of Rivers State.
A lawyer, he was called to the Bar on October 2015.