Personally, I don't think the term "serial killer" is an appropriate one to
use for Humakti. Serial killers exist within the bounds of civilized
society and pray upon their fellow citizens. I do not believe that this is
an accurate description of Humakti behaviour, even at the most extreme
end. Wasn't there an extreme heroquest that required the Humakti to kill
even healers? Even then, they would not do so within their own clan or
tribe, IMO.
I believe Thanatari would be better suited to the term "serial killers", if
one has to use it at all.
Just my 2-cents. Perhaps this point has been made already...if so, I
apologize. The thread has become so long and convoluted...
Regards,
Howard