Grizhnak stares at you for a few seconds with shock. Then he blinks visibly twice before speaking. "Yes, yes, I can see how the situation might have spooked you, but, my, me, an assassin, oh my, oh no no. Although I know how to swing a sword in general direction of opponent and know a few minor arcane tricks, I don't believe I would be much of an assassin. I'm just a scientist. I don't believe you to be in danger from anyone on board. These all seem like a decent folk."