Greg Stanton
I did, in my original post. However, as I stated, I don't consider this account "proof" of anything. The author of the book claims the OTO practices human sacrifice -- though I've certainly never witnessed this, nor actually discussed the possibility with other magicians.
http://www.lermanet.com/scientology-and-occult/scarlet-and-the-beast.htm
http://www.lermanet.com/scientology-and-occult/scarlet-and-the-beast.htm