Dr. Phil Synopsis: It's the story everyone is talking about: The horrific murder and alleged rape of 8-year-old Sandra Cantu. Dr. Phil has been flooded with e-mails and questions asking what kind of a person would commit such a heinous crime. Is it possible that a mother could do something like this to someone else's child? People are asking, do I need to worry about my neighbor? How do I spot a person who might be a threat to my child? How do I talk to my children about this? Dr. Phil deconstructs the case and tells you what you need to know to protect your kids. Learn details about suspect Melissa Huckaby you have never heard before, including what Dr. Phil says about something from her past that may help explain this twisted murder. Former New York City homicide prosecutor Star Jones is on hand with important legal analysis. Will the Sunday school teacher face different treatment from the judicial system because she's female? Also weighing in is Candice DeLong, a former FBI profiler, who offers insight into the highly unusual circumstances surrounding little Sandra's murder. And, reporter Jennifer Wadsworth spoke directly with Huckaby before her arrest. Learn her impressions. Plus, hear from the parents of the little girl who sat next to Sandra in class and now is afraid to sleep alone. How safe is your son or daughter? Would you know how to spot a child molester? Find out why Dr. Phil says the most helpful person in your life might be the biggest threat to your child.