Obioma was killed on Monday night when the hoodlums stormed his Minna residence in the Niger State capital.
The deceased’s widow, Mrs Elizabeth Obioma, told newsmen that “the assassins came in and killed him and left without taking anything.”
The police in Niger state are yet to react to the incident.
The 67-year-old indigene of Abia State was appointed NECO Registrar in May 2020.
Obioma’s killing occurred a day after the murder of Adamawa-born politician and ex-presidential aide, Ahmed Gulak.