Vercingetorix kills NPC shamans and traders, a tough gig since they fight back. He's presently trying to kill the closest roaming shaman, Pabkim, which is north-west of Derby. That actually helps Derby's defence against FAD, as the next closest roaming shaman is Atok, which I think is a distance to the north
Not that he's asked me to, but I can vouch for FAD on this. My native character was killed by FAD near the swamp in Derby, I respawned at the wandering shaman to see Vercingetorix attacking said shaman. I puzzled about this at the time as I knew the pirates were attacking Derby and could see no logistical advantage in them taking out the shaman.
More puzzling to me was to see a native, Shanks McBitey, kill someone and then say "no killing in Derby" (or words to that effect). I also have first hand experience of that as it was my character who was killed - Anthropophagi, who logged back in after being idle for nearly 2 years and just so happened to be in the Derby medical hut (yes I had another character in the area, but to be fair I had no idea where I'd left them all). I killed the two occupants of the med hut and was then disposed of by Shanks with the aforementioned message.
Also yes, I have just logged back in to the forum after two years just to defend Daves. Also no, we are not sleeping together.