「If Atem feels any discomfort at the view he doesn't really show it more than staring a second or two longer than he should. He's seen some gruesome stuff along the way. But he shakes his head slowly.」

But you didn't... She will never forget what she did. How could that help her any if at any reminder the guilt will not leave her alone? A mercy kill is useless in this place. Her soul wasn't renewed, nothing has changed.