Apparently they did the same in this case:
The sketch will be based on a Parabon DNA compiled image of a man who left his DNA behind at the scene. That technique of using DNA to determine a suspect’s “facial composite, gender, ancestry, freckles and skin, eye and hair color” has been used successfully in the past to identify suspects in the past. Manzella hopes that thousands of eyes will train on the image, and that they will at last be able to name Linda’s killer.
Yes, I saw a program on the Science Channel (I think) a few years ago, where a sketch artist was able to draw a likeness of some Neanderthal male from whose skeleton they were able to extract DNA.
Maybe in the future police wanted posters will include not just one or two sketches but dozens of sketches, done by AI, depicting the killer when he was 10, 20, 30, 40, ..., etc., years old — wearing a hat, not wearing a hat, having long hair, having short hair or being bald, having a beard, etc.?