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FBI Retired Case File Review

The host of FBI Retired Case File Review with Jerri Williams is a retired FBI agent writing crime fiction inspired by true crime FBI cases. In this podcast, she interviews retired FBI agents about their most intriguing and high-profile cases, reviews how the FBI is portrayed in books, TV, and movies and recommends crime fiction. Photos and links to articles about the cases and topics discussed can be found at

Jul 4, 2019

Retired Agent Greg Shaffer served in the FBI for twenty years. During his career, he spent six years on the FBI’s elite Hostage Rescue Team (HRT). In this episode of FBI Retired Case File Review, Shaffer reviews the multi-agency response to apprehend the D.C. Snipers, later identified as John Allen Muhammad and Lee Boyd Malvo, the men responsible for the random shootings of ten people in the Washington D.C. area during 23 days in October of 2002. He also discusses the origin and role of the HRT, and provides safety tips, especially for when confronted by an active shooter.

While on the HRT, Greg trained with Department of Defense Special Mission Units and foreign counter-terrorism teams and conducted tactical operations in Iraq, Pakistan, Yemen, the Philippines, Indonesia, East Africa, and the United States. Greg is an FBI certified Crisis Negotiator, Firearms Instructor, Defensive Tactics Instructor, Advanced Tactical Instructor, Close-Quarter Battle (CQB) Instructor, Rappel Master, and Paramedic. 

Greg also served as the FBI’s Legal Attaché in Budapest, Hungary. On two occasions Greg was assigned to the FBI Office in Dallas, Texas, where he served on the North Texas Violent Crime Task Force and supervised the North Texas Joint Terrorism Task Force.

He is recognized as one of the leading experts and authorities on the phenomenon of “active shooter” events and Domestic Terrorism Prevention and has appeared on numerous national television and radio networks, including Fox, CBS, NBC, and ABC. He is the author of Stay Safe: Security Secrets for Today’s Dangerous World and the founder and President of Shaffer Security Group a global security, risk management, and tactical training specialty firm based in Dallas, Texas. You can learn more about him at

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Jerri Williams, a retired FBI agent, author and podcaster, attempts to relive her glory days by writing and blogging about the FBI and hosting FBI Retired Case File Review, a true crime/history podcast. Her new book FBI Myths and Misconceptions: A Manual for Armchair Detectives is available on Amazon and worldwide wherever books are sold.