I don't think a hunter would put a body in an area that would be visited by hunters or other people. My guess is that just as others have said, this person thought the area was isolated. A hunter would know that this area would ultimately be walked through once deer season started.
Look on the map where the bodies were found - not far from the water at
a location where many people say they have fished FOR YEARS! Either the
perp is an idiot or he knew the bodies would be found - maybe wanted
the found.
I would look for the worst enemy this family has or ever had - if not that
profile then some pedophile who haunts wild areas, lakes, parks,fishing
areas ... has a camper? Somebody who once identified will stand out -