American Predator: The Hunt for the Most Meticulous Serial Killer of the 21st Century

by Maureen Callahan

This book is based on hundreds of hours of original interviews, as well as thousands of previously unreleased documents. These include the Samantha Koenig confession, provided to me by an anonymous source; Lieutenant George Murtie’s personal diary of the Currier investigation and his own interrogation of Keyes via phone; the FBI’s internal timeline based in part on Keyes’s journals, FBI witness statements, lab reports, affidavits and search warrants, emails, court documents, contemporaneous news reports, Keyes’s arrest records and military records, and portions of the original Anchorage Police Department case file. Though names had been largely redacted, it was easy to identify sources based on information I had obtained through investigators.