A study of this kind involves the work of many. Various past and current members of the BAU have graciously given their time, talents, and perspectives which have greatly benefited the research: Supervisory Special Agent James Beasley, Supervisory Special Agent Kathleen Canning, Supervisory Special Agent William H. Donaldson, Supervisory Special Agent Tiffany Eagles, Research Analyst Holly Hargreaves, Research Analyst Adrienne Hoffman-Lewis, Supervisory Special Agent Adrienne Isom, Research Analyst Shannon Mack, Intelligence Analyst Jessica Owens, Unit Chief Terri Patterson, and Office Services Specialist Rebecca Ross. The authors specifically acknowledge the significant contributions of former BAU Research Coordinator, Dr. Kristen R. Beyer, who is responsible for the initial idea of this research and was instrumental in the project’s conceptualization, protocol development, case collection, and preliminary analysis. Additionally, various members of the criminal justice and academic communities have provided important feedback during the writing of this manuscript: Dr. Monique Boudreaux, Assistant Professor of Psychology, Nicholls State University; Dr. Tracey Corey, Kentucky’s Chief Medical Examiner; LisaMarie Freitas, Trial Attorney, Department of Justice Child Exploitation and Obscenity Section; and North Carolina Child Death Investigator Lisa Mayhew. Former BAU Interns were extremely helpful in keeping the project moving forward by assisting with the details of case acquisition, literature reviews, and publication: Faith Coutier, Shaina Duffy, Crane Hassold, Rachel Hirst, Colleen Hyland, Jordan Kennedy, Kathleen McCoy, and Hannah Robison. The authors would also like to express deep appreciation to the BAU Research Working Group for providing critical guidance on the project for many years.