There is no way that mafia could of started with 4 people. They have gained 2 people but lost 1. Considering Noods voted for Odin at the beginning i doubt that Odin was a mafia who UD and DD has played enough that I doubt she would UD as a mafia. I guess it could be possible that both Odin and DD were mafia but unlikely. If mafia had started with 4 gained 2 and lost 1 they would have won yesterday. But mafia starting at 3 gaining 2 losing 1 puts them at 4 right now.
DD posted that she had an emergency and tried to post on her phone but couldn't. Mafia or not I believe that was true. So discrediting her as a possible mafia who UD'ed is foolish. And I wouldn't doubt that Noods tried to distance from a teammate...she was going hard after Kashta but out of no where voted Onin (who was voting against Kash). I could see either being scum.