This example shows how the word as can be used incorrectly (or at least confusingly). I know (strongly suspect) the writer intended it to mean because rather than while, but that’s not what the sentence actually says. I’m going to remove all ambiguity by changing the word itself.
This peasant has brown, frizzy hair and glinting green eyes. He has a sorrow about him because his parents were murdered in a robbery gone wrong when he was a child.
(WordPress’ spell check informs me that frizzy isn’t a real word. Webster’s Dictionary informs me the word dates back to 1864, at least, and that it is spelled the way it appears in this blog post. Gee, which one should I trust more…?)