Funny, I was going to kill Thuryl myself by use of the vulnerability scroll in the Anama shop, since I had thought wz. As was Domont, but then people were telling me that Andraste was definitely going to kill Thuryl, so I gave all my coins to Tarson instead and laid back until the game ended.
Yeah, I think we had a serious problem in communicating. What we needed was a big Anama group PM. If I had known better, I wouldn't have killed Andraste, which would have allowed for Alorael's resurrection, and the prevention of Marlenny's death, and a better likelihood that Thuryl would have died.