Not Dice, but seeing this as I catch up. Simple answer: he's lying. Both he and Gud have angled together pretty hard today to get me lynched. Gud seems to say things that imply more knowledge than she claims to have. What happened to the player asking for info and wiki links to understand things? Now she's a balance expert?
Seph conveniently has yet another RB and is trying to clear Gud with it. The easy explanation, other than lying, is that the mafia NK is factional and can't be RBed. If so, the RB is only good for the other 800 individual powers in this game, lol.