Very nicely done, reminds me somewhat of the old neutron bomb concept (except that killed the people and left the machinery intact); as for tying the character in question closer, I think given the space and description it was a good use of foreshadowing (only because of interest one might consider as to why the delivery mechanism had to be by her versus automation, but "because" works just fine)
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Thanks! I would like to write out a story of a group of increasingly joyless dark elves running afoul of Korsakoff Proxima on the surface. She/it was supposed to be the delivery system because mentally the assassin was already functionally unconscious, a killing machine bereft of higher thought. I also did not state this, but the psychic Lacerbis is the leader of the mission because he alone can sense the mental state of the citizenry and can tell if the mission would be successful or not.