If it was expert and she was black & white, a quick horde or slash will kill her. Either that or she disturbed a witch.
On finale maps, survivors will insta-spawn if you are at the end. Normally survivors respawn at a certain distance past where they died. Since that can't happen on finale, the Director puts them right there for you.
The director will go so far as to close the doors for you. Playing with Lugburz and Harry today we tried to kill the Zoey bot for the finale. She kept respawning. Even when we opened the closet doors, you'd turn and the door would now be closed with the bot inside.