It is hard for normal folks with a conscience to fathom his actions, which is in part what sucked me into this case. There is still a lot I haven't explored, but I'm starting to get a better picture, and it makes more sense. I think Chris was finding a new side of himself, catalyzed by his girlfriend. This new side was one of physical bearing, attractiveness, sexuality. Some of the texts and communications with NK highlight an intense, sexually-oriented affair (eg. NK was searching for info on anal sex and watching 3-some videos in addition to searching for wedding dresses). Having engaged in an intense affair in my 30's that cost me my marriage, I can relate to the incredibly strong feelings CW was experiencing. He likely became increasingly dissociated from his previous life with SW, and was finding it difficult to relate to that life any more. He was feeling powerful and was increasingly narcissistic. Look at those police photos of his bad-*advertiser censored*, tatooed, and lean body. This was a man feeling his oats. He wanted a new life with NK that represented a different lifestyle, one of exploration, fitness, sexuality, etc. For her part, NK fed this thirst, and he obsessed over propagating and advancing his relationship with her, even if it meant lying in a totally unsustainable way. He looked at the options, and a divorce from SW would have left him a financial cripple and probably less attractive to NK as a result. He may have felt insecure with his relationship with NK, and wanted to feed his attractiveness to her in every way. The cleanest way to achieve this new life would be to simply eliminate his family. Maybe he would even be able to keep that nice house. Fitting the profile of family annihilators, Chris fantasized about 'removing' his family from his life, but was a piss poor planner. When cornered, he rapidly confessed, which is typical of this class of sociopath.
Affairs happen all the time, but family annihilation does not. Clearly Chris was a sociopath and narcissist, and under the influence of some powerful feelings. That is my take at the moment!
What would be fascinating would be to listen in on his final pre-murder conversation with NK. They were apparently on the phone from 9-11 PM just prior to the murders. This phone call must have been influential for Chris to spring into action that night!
Dave