The APC chieftain was killed early in the morning. He was attacked when a motorcycle was conveying him to an undisclosed destination.
According to Punch, John-Morrison was killed when he was on a motorcycle on Tuesday, June 21, 2016.
The rider of the motorcycle was however spared in the attack.
Report says that John-Morrison was killed following an Appeal Court ruling, which favoured his party, APC, in a case involving 22 sacked local government chairmen.
Mr. Gift Igoma, a former Caretaker Committee Chairman of Abua/Odua LGA, confirmed the killing of the APC chieftain.
He said the incident happened around 6 AM on the day.
Igoma appealed to the state security service to look into the murder, which he described as horrific.