I wonder if there is a grain of truth in what FD says, that things had become more cordial in recent time between he and JD. I wonder if this was a calculated strategy on his part so that if he pulled up to the house that Friday morning with someone else, JD would not have felt threatened or alarmed. After all there was someone with him perhaps someone she knew.
I wonder if that someone was someone who, more indirectly, stood to lose their business (unpaid contractor for ex.) or an employee who could sure use an untraceable sum of immediate cash. Someone because of their circumstances, he knew would keep their mouths shut . Someone who couldn't talk now because they would incriminate themselves. (not EE)
I can see her getting out of her car and turning and going into the house and being hit. The accomplice immediately puts the body in the tool compartment of his truck. FD cleans up and puts bags in truck.
He drives her car to Waveney Park, and he is picked up by accomplice in the truck. They go to Mt. Spring the bags are put in his truck and the body goes off with the accomplice for disposal.
FD can honestly say he doesn't know where she is and if he hadn't been so stupid with his phone and if there had been no cameras on Albany Ave., he could have said he and MT went out for dinner and it would be hard to prove otherwise.
The altered plates are used on the accomplices truck and taken off back at Mt. Spring.
Two huge mistakes;
1. the blood in the garage
2. the trip to Albany that was recorded by their phones and therefore the cameras.
All this is totally my opinion,