Your narrative is interesting. To add more insight, the Chad Story should be married to the Lori Story.
The Lori Story is that you make money from a spouse. That's her Financial Plan. First you suck them dry of whatever they have. Then when that gets old (or they run out), you kill them and reap Life Insurance benefits and SS benefits from any kids. Joe Ryan - marry, have a kid (for SS later), suck him dry, then kill him. Then CV (only the life insurance part got away), and in this case "having a kid" (for later SS benefits) is solved by adopting. It's all about the money.
It's tragic to see how Lori pivoted when the harvest from killing CV went awry. The money was way more sparse, Lori was in dire straits, so she pushed all CD's buttons to get more money in a hurry.
Lori sees Tammy as the next place to harvest money.
It's almost certain Tylee saw CV gunned down, so she had to die before she talked, so there's that complication. So they move to ID to keep Tylee away from AZ police, and it's easier to disappear her in a place no one really knew them. But killing Tylee made JJ impossible to handle, without Tylee, so JJ had to die too. But you have to do it where no one knows they died, to keep the SS income flowing. And since the CV life insurance was an empty well, and there was only SS to live on, it's time to get to work on reaping another life policy. Tammy.
So imo both CD and LVD were manipulating the other to further their own personal agenda. His game was using religion to satisfy sex/lust via the aphrodisiac of (supposed) power and insight. Hers was using marriage to get money. Each figured out ways to use their own game to entice, entangle, and satisfy the other. What depraved people.
