[Barret]

Well here are my thoughts....

Spoiler!

I think the preachers sister must have taken Ella Mae. Ella isn't that bright of a candle and was all happy that she was getting to come back and go to work. Her slow mind would not have put 2 and 2 together that quickly. Also why I think the Sister is involved is that she IS smart and has probably figured the sheriff is working for Boyd. She knows the only person that was in Boyd's crew was Ella Mae and she sees this as getting revenge for her brother.