With all do respect, there is a picture of a murder victim with in a short distance from where her body was found, this picture was taken at some time before the crime showing that at least one of the victims had an intimate knowledge of the area
I don't think we can confirm that the fishing picture is at Deer Creek.
We know from previous statements that Abby was familiar with the Deer Creek area.
Otherwise, yes, it is interesting that Abby may have had a previous fishing picture made close to where the bodies were found.
I consider the picture pertinent to the topic but not pertinent to the investigation. I guess that is up to LE though.
The above is my opinion only.