Femi, 30, was stabbed to death for allegedly refusing to give the masquerader, identified as Olu Olowokere, money.
One person was killed and three others were injured in the accident that led to uproar.
Mary Akinnifesi was said to have put rat poison in Alhaji Nasiru Akinlosotu’s food a week ago.
The forthcoming gubernatorial election in Ondo State appears to have claimed its first casualty as a chieftain of All Progressives Congress (APC) in the state, Mr Afolabi Olaposi, was killed by unknown gunmen on Thursday night in Owo.