Nyanzvi munyaya dzezvematongerwo enyika vachiita zvidzidzo zvepamusoro soro paUniversity of Johanesburg , Doctor Pedzisayi Ruhanya vanoti mutungamiri wenyika VaEmmerson Mnangagwa vane zvakawanda zvekudzidza kubva kuna VaAhmed panyaya yekutungamira .