My guess is not. This because most criminals are also sociopaths, so it's nothing "special," to a case.
Also, KC doesn't meet any insanity criteria.
But, I could be wrong. The prosecution might want to educate the jury re: sociopathy. Hard to tell.
There's some new thought re: female socios, BTW.
It has been estimated that 4% of the population are sociopaths. And, that only 1% are female.
However, the latest theory is that females have been under-counted, because females are more subtle, and better at getting a way with things.
For instance, female sociopaths often poison, sometimes over a period of time. Males usually use a gun or knife.
Or, as Sherlock Holmes would say, "Women commit feline crimes, men commit canine crimes."
I'm rambling, but the bottom line is that female socios often have escaped detection, and have thus been undercounted, is the latest.
BTW-- Working with sociopaths is figging EXHAUSTING! One has to weigh words, and watch for passive-aggressive "set-ups" all the time.