Re: Canon characters killed in lit-verse. (spoilers)
It's not as big of a conspiracy as that. Apparently the editors decided they didn't like some of the stuff in IfM, and they've decided to ignore the book. Yeah, it's crappy, but as far as I know it was a one time thing. No one has said anything about any other books getting this treatment.
Over the course of many encounters and many years, I have successfully developed a standard operating procedure for dealing with big, nasty monsters. Run away. Me and Monty Python.
Harry Dresden - Blood Rites (The Dresden Files #6)