He lured Marshall Alexander at a train yard saying him that he has the Oracle Stone. He killed him and then cut his ears according to a Cherokee ritual. He then tossed the dagger and wrote a curse with his blood to punish Alexander in the afterlife.
Dangerfield however set a trap for him in the remote mining outpost where he worked. Tex Murphy found him badly injured under a heavy pipe. Nathan tried to whisper "Trap". Murphy triggered the trap which made the whole outpost to explode, but managed to escape with a jetpack.