I don't get that vibe at all here -- BW seems to have had no life outside of her Navy posting and (nominally) home, and evil sociopaths don't tend to kill themselves when the jig is up.
It's a horrendous crime, but I think that the possibility of a downward spiral that includes or culminates in Taylor's death by ongoing neglect or an act of violence is more likely. It's the same result in the end -- the senseless, heart-rending death of a 5 year-old girl -- but the causality is different and more complicated, as will be any takeaways moving forward, IMO.