This Google Earth measurement puts Gabby's body approx 287 yards from where her van was parked.
I've wondered if both BL & Gabby were in the van when those witnesses drove by, catching the door closing on the Go-Pro. We know BL liked to hike barefoot as in Utah, so it's plausible those were his flip flops outside the van on 9/27... However, I personally think they were hers because he didn't give a schit about sand etc. in the van.
(If) she was killed in the van then dragged across the creek, I'm thinking he would wait till dark as to not be seen, hence. reason for door closing. (She could very well have been dead inside when the Go-Pro witnesses drove by.) I'm sure LE checked for drag marks as well as taking many, many samples of ground material to check for her DNA in a wide area from the van to where she was located.
That is one scenario. Personally, I think she was killed close to / at the location she was located across the creek. Perhaps he lured her out there, idk, but the fight at the restaurant imo, was a huge factor in setting him off into a fit of deadly rage. I firmly believe her actual DOD was 9/27/2021.
JMO