Frank Calabrese Jr is one of the worst rats along with Nick Calabrese
Why you said that,Rush Street?
They turned rat after they made mistakes on their own. No one to blame but themselves.
Then they decided to rat others out to save their own asses.
Frank got in debt to his father due to his addiction to cocaine and then decided to rat on his dad instead of serving his sentence and keeping his mouth shut. Hes the definition of why rats get whacked and deserve it.