It's the great pumpkin, Sam Winchester

Ellen and Jo, who had been told the guys were back in Colorado, were staying in a different motel. They didn’t know where Dean, Sam and Cas exactly were.
Someone knocked and Ellen, who didn’t know how Zoey looked like or that she was on the loose, opened the door and looked straight into a gun.
“Where is Cas?” Zoey asked cold.
“You must be Zoey” Ellen concluded. She took a few steps back and Zoey came in.
“Where is Cas?” Zoey repeated her tanong a little sharper.
“He’s not here” Ellen said. “You better put that gun down. You don’t really want to do this”
Zoey looked...