"someone may have seen this person leaving the crime scene or going to the crime scene, but we’ve never been able to put that information together with enough evidence to show who that person was and that they committed this crime." -
Delphi Murders 3 Signatures: Robert Ives Interview Transcript from 'Down the Hill' Podcast - CrimeLights
Robert Ives, prosecutor at the time of the initial investigation speaking to media in July 2020.
Interesting quote to consider there. It sounds like they actually do have a witness or witnesses who saw someone coming or going from the crime scene. Perhaps they even named someone by name but they haven't got enough evidence to charge whomever that person is for some reason or another. This quote makes me think they may actually think they know who is responsible, but cannot proceed at this time without more solid evidence. They only have one kick at the can so to speak, and if they lose in court, the killer goes free and cannot be charged again with the same crime. Damn. I'd be weary too of going after someone without super strong evidence!
If I were to interpret his phrase, I'd think differently. Perhaps a witness, or maybe even two witnesses, saw a man close to what later became known as the CS, but that person was unknown to them, bundled up and average-looking. There was a reason for the witness/witnesses to pay attention to him. MOO - he was not local and had certain intense aura to him. Perhaps no one looked into his eyes, because of dangerous vibes he emanated. But whoever they saw, served the foundation for YBG sketch. I am sure that if the murderer is ever caught, he will not resemble the sketch, in details, but will "look sort of like" YBG.
And then he disappeared. And never came back again, and has no ties to Delphi. He was not seen on the CS, he was not seen killing the girls, so even being at that place on that day will not be enough to convict him. However, if ISP at least finds him out and connects the dots, it might be easier precisely because of his lack of connection to the place.
MOO:
He knows how to not leave internet trail, or phone trail, or obvious DNA.
Maybe a gamer, or working in some technology field, and education-wise and age- wise, he is a generation younger than DC or TL.
The physical description that ISP provided is the closest to what we have, so i'd trust them here, more or less.
About Delphi murderer being a hunter and a fisherman. I go with what ISP said, unless he honed up his hunting skills by preying on people?
I believe he is either a regular person in IT industry who probably grew up at MW and hunted as a kid, or, alternatively, he is a hunter and a blue collar but is an autodidact and could work in computer industry, with some training.
So far, he has not left any DNA in any genealogy website and sees to it that his relatives don't do so, either. I suspect his family does not connect him to the Delphi case, but he may have hinted to them at other crime, hit-and-run, for example. So they are protecting him, but don't quite know what from.
(He could be erasing information connecting him to Delphi, and maybe, to Indiana, from the Internet, wherever he can do it. But if ISP catches him, this very fact might be his biggest downfall).
About DNA. I always assumed he left at least a hair (shaft) at the CS, but what if he were wearing a wig made of human hair? Then it is not his mito DNA. Touch DNA, bad as it is, might be more reliable.
Couple of questions.
I Googled "is it easy to obtain a hunting license" re two states, WA and MA (technology states with game available; I could have chosen NY or even TX).
Question to hunters: Is there a point when a person willing to obtain a license for the first time would have to go through any classes or courses? In any state? There is no such thing as "federal" license covering all states, I assume? Or can one purchase a license for several MW states?
About him "knowing the lay of the land"...
After Richard "Bebo" Russell easily stole Q-400 from an airport and took off and was flying for 15 minutes, with zero (nada!) pilot training except for flight simulator game, one wonders if "knowing" is that important. There are Google Maps, of course, but what about "geography simulator" games? (Unless TL mentions something very special, that can't be on any map? Doubtful, as everything is somewhere online today).
And a very faraway question about "the signatures". I have read about them enough to understand that they might develop in the process of killing, and might even change. But has there ever been a case when a SK would leave a "written" signature that he also has tattooed somewhere into his body? How common is it? Delphi murderer, I believe, is not sharing with anyone, so maybe he has a specific tattoo? JMO - if they had several signatures, and one was "written", maybe it could be released? Someone could have seen, or made, a tattoo...
Good grammar counts! 
