Suspected gunmen stormed the residence of Professor Godswill Obioma on Monday night strangling him to death.
Sources on Tuesday said his wife, Elizabeth Obioma suspected the killing to be an assassination.
Obioma was appointed as the Registrar of NECO on the 22nd of May 2020.
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Mrs Obioma said her husband had just returned to Minna from a trip to Abuja when the armed men, lurking in his compound, descended on him and strangled him.