The original Witnesses are down a member.
ENTERTAINMENT WEEKLY: Why kill off Abbie?
CAMPBELL:Well, we dont like to look at it as killing off Abbie.

Credit: Tina Rowden/FOX
Her relationship with Tom and obviously with Crane has been instrumental to the development of the show.
To that end, Abbie Mills did everything she could as a Witness.
Where do you see this story going if the show is picked up for a fourth season?
We have a wide open field, and theres been a lot of talk already.
There have been a lot of positive season 4 creative discussions.
Is there any chance that the new Witness might be someone already in the world of the show?
No, there is no chance it will be somebody thats already in the show.
How about the men in the suits who roll up at the end?
What can you say about that organization?
And with Abbies demise, it sort of rings a few bells.
They need to sit Crane down and maybe have a conversation about what he knows and whats going on.
We have a wide open field with what that organization might mean at the moment.
They clearly have some questions for Mr. Ichabod Crane.
Abbie tells Crane that her job was to carry him forward, and now her job is done.
We have talked about that.
She wasnt just someone who brought him along.
Its not specific to Abbie Mills or Ichabod Crane.
Pandora says that Crane loves Abbie.
Its impossible to not see the love these two have for each other.
The respect they have for each other, the honor, the commitment, is enviable.
We didnt get much of the Mills sisters relationship in the finale.
Was there any reason for that?
Theres always more we would have liked to have done.
The last half of the episode really needed to unfold with her goodbye first and foremost in mind.
This is coming on the tail end of another big loss.
Why lead into this finale by killing Joe [Zach Appelman]?
This isSleepy Hollow, and epic is the name of the game … What do you hope that fans take away from this episode?
We have a lot more stories to tell.