It makes no sense to me for Patty to have been seen as a willing participant. Had she been alone, it might have, but with Mattie present it negates Patty being a willing participant IMO.
I truly believe Patty folded her own clothes to stall for time.
Hurricane she may have had her diary with her to prevent her mother from reading it. Also, somewhere it was mentioned the girls purchased some items from a store. This most likely would have been the bundle along with the diary.
Well, I may have to go back and change my likely scenario. If the killer was known to Patty would he have left that diary at the crime scene?
That sure wouldn't make a whole heck of alot of sense. In fact, it would be down right foolish, not to mention incriminating. Perhaps these murders were made to look like something other than what they were or the killer thought that's what he had accompished. Or perhaps these murders were carried out in such haste, the killer never saw the diary or didn't take time to check what Patty had with her.
If the bodies were moved, I'm thinking they were only moved a short distance, and that the murders likely occurred very near where the bodies were found. If there was blood in the car, then the killer and the car had to part company. Sending both to another state could have easily facilitated getting rid of the car. It most likely was abandoned or wrecked and abandoned, license plates removed.