With regard to the first sketch's origin, this is an excerpt from the transcription of the July '17 press conference in which the sketch was first shown. (The full transcription is on thread #62, post #236.)
Q. In the release, you mentioned some things exactly such as the hair color. Can you talk about this at this time?
A. Basically, the hair color is a reddish brown. She was .... the person was not clear on the color of the eyes, but she .... the person said it was definitely not blue. She was very obvious .... the person was very obviously not blue eyes, but they did mention that they were not clear on what color it was.
Q. So there are people out there who are sure they saw this guy walking around this day and they helped you out, is that it?
A. Pretty much that's what it is, yes.
Q. Did those people come forward right away, or did it take a little time for those people to come forward?
A. It's been a while. It took a little bit, people are scared, they are afraid to be recognized by the subject, so, it just takes a while for these things to happened. Like I said, the picture did not come overnight, we've been working on this for a while.