so, investigators asked forensic artist karen taylor to try to put a face on the skull. >> granted, it's sort of a last-ditch effort when the forensic artist is called in. the job of the forensic artist is to trigger interest, to create that link. i often refer to it as being the middle man. >> at that point, she was my best hope. in fact, she was about our only hope. we were just about out of things to do. >> taylor pioneered a technique called two-dimensional facial reconstruction, which is part science and part art. each race has facial skin which is different than other races. using known scientific data, taylor applied rubber markers to approximate the facial tissue thickness of a caucasian. >> the tissue thickness varies on our faces. if you feel on your face, it's much thicker down in this cheek area and much thinner on the forehead. so, we cut and apply rubber markers to those landmarks, and that helps give a guideline as a starting place to create the contours of the face. >> taylor then photographed the skull and placed a piece of translucent vellum on top of the picture. she t