What I take from it all is, the vest depends on the store policy in certain part of the store certain position wear them, and other don't. I used google images and its showing a lot differ style also wiki for information. This goes with your point of management and style of dress codes..
Its very hard to say,.. if she was customer service clerk or etc..
I will say this if this was a kidnapping that person would have followed her to work and home to get a good idea of her coming and going. Then choose the best time to move or whatever is possible for this person who did this. I feel by her being in the house all day and having no social life beyond work 6am was the best time to strike. Dads a police, so I don't think this person was going take her from her home and I f they the parent misspoke about leaving together..If this is the case.
A part of me think she never made it out that house that morning or with 2 miles of it that morning. Also not many know a wheat field don't leave many prints. This person had some outdoor's know how. Imo if she was to run off, she would go the right it the fastest route. So I think the wheat field is the start of this game.
And yes you can find foot print in wheat field. Its a certain spray they use. I think they van may have been dumped there later down the line.
