Retired agent Dr. Joseph Dizinno, DDS. served in the FBI for 22 years. Prior to joining the FBI, Dr. DiZinno, who received a Doctor of Dental Surgery Degree from The Ohio State University in Columbus, Ohio, owned and operated a family dental practice. He was initially assigned to the Washington Field Office where he investigated reactive crimes. After three years in the field, he was promoted and transferred to the FBI Laboratory where he began to specialize in the examination of hairs and fibers. Dr. DiZinno served as a critical investigative resource on many high-profile cases including dental and DNA identification at the Branch Davidian Cult fire, kidnappings, and major extortion cases.  In this episode of FBI Retired Case File Review, Dr. DiZinno reviews the functions of  FBI Laboratory and the investigation of the tragic murders of Joann Katrinak and her baby Alex where mitochondrial DNA analysis was first applied to forensic casework. He was part of the research team that developed and validated forensic mitochondrial DNA analysis capability which enabled the FBI to obtain a DNA profile from evidence containing small or degraded quantities of DNA from hair, bone, teeth, and bodily fluids. Dr. DiZinno ended his Bureau career as the Director of the FBI Laboratory where he led more than 550 FBI Laboratory personnel, providing forensic examinations, technical support, expert witness testimony, and training to federal, state, and local law enforcement agencies and responding to events all around the world. Currently, Dr, DiZinno is a faculty member at George Mason University in Fairfax, Virginia where he teaches forensic science to undergraduate and graduate level students in the Forensic Science Program.

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Retired agent Kevin Miles served nearly 23 years with the FBI. As the FBI’s first officially assigned full-time Special Agent bomb technician (SABT), he spent more than 17 years acquiring extensive experience in the field of improvised explosive devices and post-blast investigations. In this episode of FBI Retired Case File Review, Kevin Miles reviews the duties of a post-blast bomb technician processing and investigating explosive crime scenes, the bombing of Khobar Towers, Saudi Arabia in 1996, and the Maldives Al-Qaeda bombing in 2007. Kevin Miles is a past Executive Director of the International Association of Bomb Technicians and Investigators. He has travelled to 65 countries and 48 states, including multiple deployments to high threat areas such as Afghanistan and Pakistan, and has taught more than 9,000 students from all over the world on the intricacies involved with bombing investigations. In 2010, he was named as an FBI Master Special Agent Bomb Technician. He has published numerous articles and research papers on the topics above and has received numerous awards for his service to the first responder community. Currently, he is a lecturer at Eastern Kentucky University’s School of Safety, Security, and Emergency Management.

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Retired agent Dan Reilly served with the FBI for 30 years, six as a photographer and technician in the FBI Laboratory and twenty-four as a Special Agent. During his career, he worked on a wide variety of criminal cases and helped start the FBI’s Safe Streets Task Force Program. In this episode of FBI Retired Case File Review, Dan Reilly reviews the case of Wayne Silk Perry, a hitman and enforcer for drug gangs operating in the early 1990’s in the Washington D.C. area. Perry claimed to have been involved in as many as 100 murders, many targeting witnesses who dared to cooperate with law enforcement. In addition to investigating violent drug gangs, Dan Reilly headed the FBI’s Evidence Response Team at the Washington Field Office and provided extensive experience and training to others on crime scene examination. After his retirement from the FBI, Dan Reilly worked as a private consulting analyst with the High Intensity Drug Trafficking Area (HIDTA) task force operations in the Mid-Atlantic region.  He has published a text book on crime scene examination and taught other law enforcement professionals in the U.S. and worldwide. Dan Reilly is currently an adjunct faculty member at George Mason University in the Criminology, Law and Society Department. 

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Retired agent Richard “Dick” Marquise served with the FBI for 31 years. He is an expert in the fields of counter terrorism and crisis management, both as an investigator and as a manager. In this episode of FBI Retired Case File Review, Marquise is interviewed about Pan Am Flight 103, blown out of the skies over Lockerbie, Scotland on December 21, 1988, four days before Christmas. Two hundred and seventy people were killed. Marquise was involved with the investigation from its inception and, after being named to lead the U.S. Task Force which included the FBI, Department of Justice and the Central Intelligence Agency, he managed the investigation through the return of indictments in 1991. He also played an active role through the court proceedings and in August 2001, with the successful resolution of the trial, he received the Attorney General’s Award for Distinguished Service. Following the case, which had been code-named Scotbom, his Bureau career included the role of Special Agent in Charge (SAC) of the FBI’s Oklahoma City Division.  He has provided training to law enforcement officials all over the United States and internationally and has appeared on television and radio talk shows and has given hundreds of speeches all over the world on the topic of terrorism. In order to document the facts of the investigation, Marquise wrote Scotbom: Evidence and the Lockerbie Investigation a non-fiction account of the international terrorism case.

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