I'm not in clear agreement that it was just one witness that helped create this sketch due to the presser...
"Q. How did you have an artist develop this sketch and is the sketch made with the help of eye witness or eye witnesses, or was it made solely from the other picture we have seen?
A. Basically, I can't really answer that question completely. I can tell you it came from the investigations itself, from officers looking into things, to tips and leads that have come in, that people have come forward, we got information from there, and the composite was put together with that information."