Guilt

Keto stood at the edge of the small crowd clustered around the
visual communicator down on the planetside. As Christine McKenzie
was consigned to the stars he looked away, somewhat awkwardly.
He wasn't used to guilt. It wasn't an emotion that he tended to
pay much attention to, not any more at least. Yet the fact that he
had been the one to diagnose the now-deceased woman weighed
unpleasantly heavily on his heart - even moreso due to the thought
that he had originally said it was nothing more than a mild bout of
influenza.
Keto shook his head faintly as he heard the memorial music play.
No, there could have been nothing he could have done. Until the
results of those tests had come back, there hadn't even been a clue
that Christine's illness was that serious, or even mildly serious.
There was, he repeated, nothing that could have been done.
Sighing quietly, Keto turned back to watch the security eulogy,
pushing to the back of his mind the intuitive thought that his
ability to feel guilty was not completely diminished yet...
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Keto, feeling guilty? No, it can't be! Very nice eulogy, by the way.