Plot Question: Did Johnny's Moll get Ziggy's gang busted?
When his sidekick is worried about the "woman scorned" thing on the boat, he then infers from Rocco that it will only lead to Ziggy being busted, and then says
"There's only ONE Johnny Rocco!"
And, of course, we later learn that they DID get busted!
SO, after all the shmoozing and backslapping he twisted a knife in their backs??