The climate was tense on Tuesday, October 17 at the Abuja court, at the opening of the trial of Nnamdi Kanu. This independence leader and director of Radio Biafra in London is prosecuted for treason and attacks on state security. His trial opened in his absence amidst tensions.

"Where is Nnamdi Kanu?" "Repeated Judge Binta Nyako. "  I do not know where my client is, his house has been invaded by soldiers and since that day I have not heard from him," said Mr. Ifeanyi Ejiofor, the lawyer for the independence leader. "  I can not say whether the accused is dead or alive,  " he adds ironically, according to our correspondent who attended Tuesday's hearing.

https://sipcypriannewsalive.com/2017/10/18/nigeria-biafran-independenceist-nnamdi-kanu-absent-at-trial/

probably he was busy. That shouldn't be a problem.