We'll have to consider a lot of things and make a list to follow up later when we go back. So, instead of focusing on the questions that can only be answered once we leave here, we need to focus on the questions we can answer while here. Also, keeping an idea of what might have happened will make investigating different from not having any.

For the moment it's safe to assume that the owner of the foot prints had been there a while and had worked with the victim at the very least. If not worked with, familiar with. There's far too many warn areas to assume they had only been here once.