Reread the role list again, and let me just remind you that both Marth and Ephraim have swords/lances that don't reveal themselves. I think it was Marth tbh, because he doesn't have anyone to confide to, if he's doing the right action or not, like Ephraim with the other mafia. Unless the mafia are just fucking stupid, all of them, not just Ephraim, I don't think they would just kill Desi just like that, because there's gonna be one that would oppose that.
As for my reads, I don't know tbh. My eyes are on Ishi tho, just because he's just grasping straws at incriminating Johnny, especially the whole Bard mistake. As for Johnny, not sure, it's pretty much null at this point, just because I know how Johnny plays, and he is playing weirdly in this game, but I'm not getting any reads from him for the time being. As for other players, Morian is probably fool tbh, and I can see Abby being maf, but that's just a gut feel.