Doesn't matter who "THE RAT" was, the mere fact that Vilma is even saying there was a rat makes it even more legit of an offense.
Vilma's a moron. Even if this dude pledged "revenge" it doesn't matter, they have audio-tape confirming the bounties.
Let it go Aints fans, back into obscurity you go.
Whether the information be true or false it comes from somewhere. And that person is a rat/a mole/ stool pigeon/snitch/informant/ liar. or any other derogatory name you want to call him.