Excellent summary! Thank you for taking time to summarize that.
I wanted to add about Jodi's claim of receiving a cash refund from Wal Mart. In my area, a purchase made with a credit card is refunded TO the credit card; there is no cash refund option for cc purchases. If you paid cash, and it is within a certain time (30 days, I think) you can get a cash refund, but there is still documentation of the return, and you have to fill out an address and phone number, also. I remember doing a cash purchase return once recently, and instead of cash back they gave me a WM store card. And still completed paperwork. I don't remember if they gave me a store card because the amount was very small, or why exactly, as I have never done a return greater than 30 days in my life.
The point is that WM has very narrow circumstances under which they will give a cash refund, and there is always a record. Years ago, there were problems with people smuggling items out of the store, then carrying them back another day without a receipt to ask for a cash refund. WM is pretty specific about return policies, and I suspect cashiers have exactly zero independent free judgement in deviating from these policies.
So from where I'm sitting, it doesn't matter whether or not Jodi claims to have received cash back in her return process. There still would have been a definite record of the return process, whether cash, credit, or store card. At ANY WM store, not just the one she bought the gas can from. Jodi was stupid enough to think that if she lied and said she got a cash refund, that it would minimize the transaction importance, and eliminate the record of the return. Juan nailed her on that.