http://www.ajc.com/news/content/metro/atlanta/0505/17daughter.html When Demetria Hill disappeared, her mother tracked down and confronted the man she now believes strangled her daughter. Fulton County prosecutors say what Sharon Williams did was dangerous, but effective, in stopping a violent man who had preyed on women in two states for years. "I had to go out and do it on my own," Williams, said. "I wasn't scared. It's my child." He never confessed to killing her but opted to plead to the assault instead of going to trial for murder. Prosecutors decided to offer the plea because of weaknesses in the case such as an undetermined cause of death, Pinion said.