An yi wannan rantsuwa a cikin babbar dakin taruwa na Gidan Shugaban Kasa.
Walter Onnoghen ya kasance canji na Mahmud Muhammad wanda ya cika shekara arba'in.
Mahmud ya yi ritaya ranar Laraba. An sanya Walter Onnoghen a matsayin Babban alkali na Kotun Koli a shekara na 2015.
Ya yi karatu a Jami'a ta Kasar Ghana a shekara 1977.
Yana da shekara sittin da biyar.