This of course begs two questions: First off, what’s King’s motive for the killing? Aside from having a very scary mind, King’s a mellow, easy-going guy. Second, why would Chapman go along with a deception that would have him incarcerated for many, many years, and probably get lynched upon any release?
I suspect the author’s answer to both involves alien greys, vampires, and Atlantean Power Crystals.
Actually I’d wager that the Power Crystals would be from Mu.