Still catching up but I was going to comment on this when I did. I also heard mention of “black fabric” and “buckles”. I think this monster tried to use more than zip ties to restrain her.
If there’s anything which I find remotely comforting it’s that whatever she endured was only for 6 hours at the very most.
In the photo at airport she appears to have dark/black pants on and a backpack/rucksack, buckles?
Body Of Missing El Segundo Woman Mackenzie Lueck Found In Utah Canyon