The contingent was not large, also sort of all sworn by blood oath, I suspect. In their minds, they could have felt like kindred. I hope one of them does blow the cover if that is the case, especially if money is to be made in the deal.
It was so important they forcibly kept outsiders away to be locked in secret with their victim. I really still think it was an occult ritual.
Could have been. It would be useful to know who was in there. Maybe you, FV and any other witnesses could compare notes and make an educated guess.
For my two cents, just lugging in a video camera to record Terri's last breath is proof of madness.