 Nyorai kupfuurira kweiyi ndima - Harold Holt akanyangarika achishambirapaPortsea, Victoria, musi wa17 December 1967, uye akafungidzirwa zviri pamutemo kuti akafa mazuva maviri gare gare. Gavhuna Mukuru, Ishe Casey, akatumira McEwen uye akamugadza kuti ave Mutungamiriri wehurumende wenguva pfupi, achinzwisisa kuti basa rake raizopfuurira bedzi kwenguva yakareba sezvakanga zvakatora kuti vaRusununguko vasarudze mutungamiri mutsva. McEwen akapikisa kuti kana Casey akatuma Liberal kuti ave Mutungamiriri wehurumende wenguva pfupi, zvaizopa munhu iyeye mukana usina kukodzera muvhoti iri kuuya yemutungamiri wenguva yakazara. 