Kanu who reappeared at Jerusalem after a year of his disappearance said that he called Buhari a mad man before he died and was buried in Saudi Arabia.
The separatist made this known on Sunday, in a new audio he released at the Radio Biafra.
Speaking about his ordeals before his disappearance, Kanu said:
“Cowards run away when they see us. Some people were writing a lot of junks about us. That I was in London and we were just on Facebook.
“I arrived in the zoo on the 14th of October in the year of our Lord 2015. I told them I was coming and I came. They dared me to come back and I did.
“When I arrived, I was taken to Abuja, I was confined to a very tiny space, I was chained like common criminal, I was handcuffed. They tried to break me but they know it was impossible, they can attest to it.
“They mocked me that I will rot in jail, some prayed very fervently, those against Biafra. The walls of prison and detention couldn’t keep me.
“I told Buhari before he died and was buried in Saudi Arabia that he was a madman. I called him a madman in his court.
“I told the court they cannot jail me and they did not. I called the dead Buhari an illiterate madman in his own court and I walked away
“I cannot recall anybody being able to do so in the history of the dumbnable (sic) zoological republic.
“With very few and notable exceptions. Men like Femi Fani-Kayode and ex governor of Ekiti state, Ayo Fayose. The two men I respect very much from the west.
“There is no other human being that has been able to rise up against the murderous tendency of Buhari.
“Buhari died because he dared to touch me. And I must warn every body, especially those who dare to touch me, that what happened to Buhari will happen to them” dailypost reports.