I wasn't sure where to post this so I chose here, I hope it's okay. Let me first say that I have no formal education in psychology other than the introductory classes that are taught at all colleges usually during a freshman year.
I found a book at the library that has been very helpful and has turned out to be quite interesting. It was on the reference shelf but there was also a copy in the stacks for check out too.
It is called "Why Mothers Kill: A Forensic Psychologist's Casebook" by Geoffrey R. McKee. Mr. McKee wrote this book for not only medical and mental health clinicians, but also for protective service professionals and the general public. I, being a part of the general public have found this book to be extremely easy to read and understand.
I think you can googlebook this book but there are sections that are blocked out. He supports his theories and information with other studies that have been done, especially about filicide.
I have read a good part of this book and one case study stands out, in fact, as I was reading it, I was almost taken aback at the how closely the case study dove tailed into the KC story. Of course, I am not qualified to make any kind of decision on which type of Mother that commits filicide KC is (from his categories that he has identified through research) but, in my simple mind, KC was very much like the category: Detached Mother, Resentful type. on page 87 of the hardback book.
If anyone is interested I highly recommend this book!
here is the author:
http://www.whymotherskill.com/
You can see 28 pages of this book at:
http://books.google.com/books?id=e-ZQuzbXEtMC&dq=why+mothers+kill&printsec=frontcover&source=bn&hl=en&sa=X&oi=book_result&resnum=4&ct=result#PPA20,M1
Page 20 on the online access pointed out something I found very interesting in my reading of this hard cover book, and that is the statistics (supported by studies) of how many Mothers confess to their filicide. They range from 70% to only 38 %, which, in my mind, shows that KC is very mundane in her denial. Banal if you will (I paid good money at college to learn that 10.00 word
heh)
So I apologize for the length of this post and if it is in the wrong place please feel free to delete or notify me to delete. I just wanted to share the wealth of information that can be found in this book that is accesiable to the common person such as me.