When nine-year-old Jessica Knott disappeared from her home and was later found murdered, all of the tools in the arsenal of forensic scientists were brought to bear. Painstaking analysis of hairs, tiny fibers, and the plastic garbage covering her body lead police to a suspect – who turned out to be the same person who made what he thought was an anonymous 911-call, reporting where Jessica’s body could be found. (thetvdb.com)