Me too- well, perhaps not a psych evaluation, rather just a review for other incidents of aggression by KA. Toxicity can work both ways.
In the end:
- KA is physically attractive, with plenty of potential dating options. So, less chance of "I cant compete- and now young Miss Hardbodie has taken my only viable romance" emotions.
- The relationship was not long term and did not produce children. Thus, less likely to generate the intense emotions stemming from: "The rival is a threat to family and a home existence that I have known for decades".
- KA has viable income options independent of her boy friend. In addition to real estate, KA could well be the brains behind the " trendy RV's for trendy cyclists" business. So.... less chance of a thought process of: "Losing the relationship also equates to an irreplaceable loss of income, social status etc."
- No build up to the extreme violence. There is no evidence that KA contacted the victim with demands or pleas to break the relationship. So.... less chance for a line of thought of: " Well, I gave her a final chance- now its war".
Yet..... KA still commits murder despite her dating / social options, lack of children, business skills etc? Something might be deep seated with her.