I am an adult woman and I would have fear about coming forward if my encounter with a murderer were such that I knew what color his eyes were not. I would come forward but the fear would be there. It is not really hard to find people now, people are getting easier and easier to track down. Pretty easy for people to play detective these days, look what all is online for sleuthers to go through. Most of the information has been a matter of public record, home ownership and things like that, but people used to have to physically go to the courthouse to see things like home ownership, business ownership, even criminal records. Now it is mostly available at your fingertips.
We really don't know how long it took her to come forward. Two things were stated by LE yesterday; that they had worked with witness/es for some time to come up with the sketch...and that it did take some time for at least one witness to come forward or sit with artist. We don't know how much time before they came forward though. I am not assuming the person just came forward.
The fact that there was some time frame before the person came forward really makes me wonder what the encounter was; did BG try to abduct her or more? That might have bearing on why she was reluctant to sit with artist. The emotions may have been fear but may have been reasoned fear. She may have had a serious encounter with him. I really don't think the witness just casually saw him on the trail or somewhere briefly. If the encounter was brief and without incident I would not think LE would be so sure of the details of witness memory for the sketch. I have wondered if the witness possibly saw him cleaning up afterward, that would be traumatic when the news of the crime came out. One day I went out to water my flowers and a teen age boy was using my garden hose to wash up, he had a bloody nose. I knew the boy and figured he had a fist fight and didn't want his mother to know, so was cleaning up before going home. Even knowing him, it gave me a real start to see him in my yard using my hose to clean blood off of himself. I can only imagine if it had turned out to be a murderer.