There is a patch on Caesar's arm that was put there by his father to ease his addiction to Jesus. If you can remove the patch, you can kill Caesar at the hands of the father--not the mother.
Just after Lucifer was turned loose into the world, his daddy told him to get rid of his Jesus dolly and come out of his Jerusalem cave and smell the American roses, but who listens to a father who is older than the know universe these swag days.