Here are my thoughts...
CC is getting tired of having to live under so many rules - he simply getting sick of his religious life, his religious wife & children, religious family, religious employer, religious social circle.
He wants out of all of it and he wants to go play the field and find out what he has been missing out...
straight out of HS, becomes a Marine, meets a beautiful USAF gal, she gets pregnant before they are both out of the service, probably gets married because or family and military pressure, gets out of military moves back around family, daddy C lines him up with a good job with JM, wife starts enjoying the religious life. Wife starts getting more appreciate by others than what he is getting (or thinks he deserves it more), she has a closer relationship with boys than he does. He starts disliking his children, he starts disliking Sheri, he starts disliking his employer, his family, etc.
He does not want to pay alimony nor child support. He wants a free break.
He comes up with a plan... I'll write threatening letter to make it look like someone is threatening my family because I work for JMM.
I'll kill my family and I write things on the wall to make it look like it was hit all because I work for that "B", JM. (I recall someone said she-devil was on the wall in the house)
I'll get away with it and I will collect the life insurance and then I will sue JMM because they did not protect my family from these threats or the killer(s).
I'll sell my house and disappear with my bank account and pockets full of cash.
No wife and no kids to deal with - no employer to deal with - no family to deal with.
I will be able to retire and I will get away with it.
Typical narcissist...