I agree. The only way one person, even strong, could have dragged Libby’s body, would be if he used a raincoat tent, or something that would make kind of a lever. (If there was a wheelbarrow next to the deer stand, for example). That could work. Or, we can discuss it till the cows come home, and not understand, because we don’t know the intricacies of that creek. I suspect there are, and this is the main reason why LE think he is local. I think he may be not. Heck, he might have never been to that place, but had a friend from Delphi, who, drunk, could once be telling about peculiarities of his hometown. After that, maybe two trips, and he knows the details.
Even easier - there are probably hiking and trails sites, that might be these killers’ haven. I saw the BridgeHunter that has Indiana coverage map.
What I am thinking of, there are probably commentaries on these sites, and it is in the comments that someone, unexpectedly, could leave some details about his home place. Even more so, on YouTube, because who is reading all of them?
I can imagine, if people were posting something about our local parks, someone could comment: “this place is popular with drone enthusiasts, but few know that it has not two, but three, entrances. The third one is well-hidden”…. Hoopla, an aspiring trail predator might take a note.
What I want to say - if LE knows the true reason for the murders, they probably are slowly building up the case, and are right.
But if they assume that it was a local because “even I had no clue there was a west crossing”, they might be totally wrong. I don’t think all SKs are of TB’s IQ. Probably, high average would be enough to pull it over people, investigators, with superior IQs. Because, the killer has obsession, perseverance and interest. It is his hobby and dedication. So, 17% chance of “a stranger in the alley” is not a small number to me. (And I think there is something in that DNA that doesn’t match the locals. It is not useless, it might not be matched).