Risotto figures out that Doppio must be a Stand user that the boss trusts in deeply because he’s able to hear the noise from a certain Stand. Risotto then uses his Stand Metallic against him. Metallic is able to control magnetic force and attacks Doppio. Doppio uses the part of the boss’s power he received from him. While they’re fighting, Risotto realizes that Doppio’s personality and actions seem to be changing and he realizes exactly who Doppio is.
but you need to lock away what 
happened to Sorbet and Gelato.
لكن عليكم أن تتستّروا على ما حدث لسوربيت وجيلاتو
aber ihr dürft euch nicht von Rachegelüsten
für Sorbet und Gelato leiten lassen.
pero deben desligarse
del asunto de Sorbet y Gelato.
pero debéis desligaros
del asunto de Sorbet y Gelato.
mais ne vous préoccupez plus
de Sorbet et Gelato.
ma dovete dimenticarvi
di ciò che è successo a Sorbet e Gelato.
mas é preciso deixar de lado
o que houve com Sorbet e Gelato.