JMO - I think he avoided being caught because he compartmentalizes, and in contrast to what people have posted, has not changed, be it behavior or looks. He understands that as long as there is no one to connect him to the bridge that day, his saving grace would be lack of change. So he doesn’t pull photos, doesn’t close FB, doesn’t do anything that would be suspicious. As to posts - I think he may, but not here. In a more cluttered media, but only if he is a local and has to respond to the horrible event in the community. So he posts, if his friends do, but not much.
I honestly think he is much smarter than the people hunting him. And I also wonder what allows him to compartmentalize. Either he is a seasoned SK, or maybe, he is not, but in his mind, the motive justifies the act. And I am torn between these two options. Because if he is not a SK, there are very few motives that in the eyes of a normal, law-abiding citizen, would justify the murder of two teenage girls.
If he is not a SK, exploration of the motive might provide a clue to his person. He thinks he is saving someone from a horrible predicament by the murders. He doesn’t mind what might happen to him.
If he is a SK, he might be a traveler that does not live here. I came across this article and thought, here is one more reason to travel to Delphi and be unnoticed.
Archaeologists uncovering Delphi's history - WISH-TV | Indianapolis News | Indiana Weather | Indiana Traffic
These digs always invited volunteers. Year after year.
If he is a local SK, he should travel somewhere to hunt. Some expositions? Fairs? I know a couple of vendors, they are gone every week, but they usually travel to known places (in their case, one of the coasts). Is there a possibility to see if there is a pattern of murders, and then trace whoever local frequently travels to sell cattle, crops, buy tractors or something like it?