Spider its a spolier if you wanna know:

Shelly was killed by the priest to cover for the nazis doctor.And that was one of the things the nazi doctor created, the dead guy was a nazis hunter working for Jude to bust the nazis doctor. the young nun killed him.

I feel bad for the young nun, she isnt strong enough to fight off the demon possessing her. i'm hoping jude is going to come and rescue everyone. i need to know whats going to go down! How will it end??