Wasn't he the guy tasting the blood of the girl he had just sucker sworded? Unless it's an ancient Crescian way to show respect by spreading hepatitis, I wouldn't put him into the "fully normal" bin. Toma doesn't do that.
I think more and more that Murkoph has something in common with Sette. Maybe he also was developed by a wizard. Until now, he, Sette and Duane are the only ones who aren't senet beasts and the Khert doesn't process. Which kind of reminds me of the pymary developed by Mrs Quigley, the khert is stopped from recognizing objects.