I'm not sure they can avoid liability by cutting him loose, especially if they did it just as an investigation is starting. Nor would it work very well for them to try and paint him as a lone-wolf, when he was part of a group that presents an image as a unified body of men working under the direct guidance of the Holy Spirit.
Anything they could do to try and distance themselves from him really wouldn't work at this late stage. They can't be that unprepared, can they?