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.