Shehu Sani's reation is coming at a time the Kaduna stater governor, Mallam Nasir El-Rufai was caught on tape reportedly said former president Umar Yar'adua ended up dead while fighting with him.
The Kaduna senator in a Facebook post said that Buhari should ensure that the real cause of Yar’Adua’s death is investigated without any delay.
He said: “With new facts emerging about Yar'adua's death, President Buhari should open a new investigation into what actually happened to the late president.
The hitherto belief was that his death was as a result of a natural, terminal illness, recent revelations has proved otherwise. We must clear this fog of history. What killed President Umaru Yar'adua and who killed Umaru Yar'adua?
Related: [Video] Musa Yar'Adua Fought With Me And Ended Up In The Grave - Gov El-Rufai