This was one of my first instincts.
Why would a woman who seemed to have it all throw it all away and murder a little boy? Why hate Gannon? It must be more than just temper. Murder has to be really nasty and hurting a child is egregious.
I want to offer an idea that is pure speculation on my part. NOT a rumor. Just a theory for motive.
What if Gannon saw or heard that she was seeing another man on the side AND she was already abusive to Gannon? Could she have thought he would tell his dad? Could she have began her premeditation then?
Sure, she could have opted to leave for the other man but suppose he was married too and didn’t want her?
Suppose the other man wasn’t that important to her but she couldn’t talk her way out of the issue because Gannon was 11 years old and caught on easily? It could have made her rage.
I don’t think anything is beneath her. I think she may have wanted AS but with freedom to do her own thing without children and without a spending limit. She obviously didn’t love him or his children.
I am curious to know what investigators have found.