I personally don't think either are mafia. At the moment I reckon it's possible with MaD's modding for their to be two of the same character because as Chewie said, he wasn't Link before. Maybe as some hidden part of a role, the first person who was locked up became the first person who role-claimed? (very very loose ends!). But it does make you wonder, because if anything, to me this adds validity to Bevab's role claim?
Imagine if Bevab turns up mafia now after me posting that!
Chewie, which part of the night write-up refers to you being locked up in a castle?