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.
It's true that you're going to have 
scissors shoved down your throat.
سيُقحَم مِقصّ في حلقِك ولا مفرّ من ذلك
Natürlich wird dir bald
eine Schere im Rachen stecken.
Aunque es cierto que acabarás
con tijeras en la garganta,
Aunque es cierto que acabarás
con tijeras en la garganta,
Des ciseaux seront introduits
dans ta gorge, c’est une certitude.
È vero che ti ritroverai
con delle forbici ficcate in gola.
É verdade que ele vai enfiar
tesouras na sua garganta.
В твоём горле неизбежно
 появятся ножницы.