I think we'd find evidence if the dark triad. Losing his dad at 12, what impact did that have? Standard of living drop? How did the family manage? Did his mom date? Did he see that as a threat, a violation, did he have a creepy incestuous possessive Norman Bates relationship with his mom?
How many sex workers has he hired over the years, discarding certain ones in favor of a "type" which he in turn permanently discarded? Where'd that "type" come from? I'd like to compare photos of all the women in his life, at age 18-25-30. Mother, wife, second wife, high school girls, high school girl's mothers.... his utter disdain for women in violent, palpable, deadly.
That call to his former coworker is chilling. Trying to come off as natural, give me a call, something I want to run by you. Yeah, no. Just say it. State the nature of your business. It was lure-y. And gross.
Jmo