Instruct: Classify the given review as either positive or negative.
Query: Sister of uncharged decedent Sheryl Lynn Porter----NOT okoro

Very disappointed in this book. It's a duplicate of Eye of Evil by these authors until the dates reach 1991...which is the very last few chapters of the book. Also a little disppointed that the authors did not take the time to correct some of their information on the victims. My sister's name is Sheryl PORTER....not Cheryl OKORO, they have had 15 years to research this criteria but neglected to do so but then again the uncharged decedents obviously aren't very important to anyone other than the people who loved them. Lots of other mis info. The authorities did not recover the number of bodies that the authors claim they did. Very diasppointed.