An accomplice could have flown in and rented a van, maybe that's why he was buying time until the following night? So he may have had one person help him clean up and move her out of the house, and another fly in, rent a car at the airport, help with the move to Franklin later, then fly out. So luckyseven's point about the timeline focused away from somebody coming in later and moving her? Why would he need to stretch the timeline? It had to be logistics. Using an untraceable car and getting distance in space and time from the crime. So why would he need to buy so much time? He may have been waiting for somebody to fly in rent a car meet him and take her away.