A federal appellate judge, Justice Joseph Shagbaor Ikyegh, passed away at 65 in Makurdi as the process for his elevation to the Supreme Court began.
His sudden death follows recent accusations of taking bribes to uphold Governor Dapo Abiodun's reelection in Ogun.
Ikyegh led the panel that supported a lower tribunal's decision, triggering controversy.
Dissent from Judge Jane Esienanwan Inyang prompted an appeal to the Supreme Court.
Ikyegh's demise raises questions about the ongoing judicial proceedings and the integrity of the elevation exercise.
Judiciary watchdogs consider the case one of this season's most contentious election petition verdicts.
