Board Thread:Spoilers!/@comment-1916997-20180303031455/@comment-5899967-20180308104126

Speculation says that the witch hunter will be revealed in 7x12, which makes it look like it's Naveen or Facilier, but what if both are red herrings and the killer gets revealed in 7x13? And it would be Jack, you know, in an episode where the main witches actually appear.

I still doubt it, I guess it's most likely Naveen, Facilier is too obvious.