Alison Dammann is the producer of the '' Smiley Face Killers : The Hunt For Justice '' series . Alison has previously been with 44 Blue Productions , but has been signed with Vox Media since March 2018 . Throughout the episodes of '' Smiley Face Killers : The Hunt For Justice '' , there are two main investigators involved in the series , Anthony Duarte and Kevin Gannon . The two investigators and their team exploit the parents and/or loved ones of the victims throughout each episode of the Oxygen series . Kevin Gannon is a retired New York Police Department Sergeant and has received nearly 100 medals for bravery , being named as one of the most highly valued members of the Special Investigation Division of the Detective Bureau and NYPD Sergeants before he retired in 2001 . Anthony Duarte is a retired U.S. Department of Homeland Security as a TSA Transportation Security Manager as well as a retired NYPD second-grade detective . Duarte has been awarded ten Excellence in Police Duty Awards and five Commendations for Meritorious Services . In addition to Gannon and Duarte , Mikey Donovan and D. Lee " Doc " Gilbertson are featured in some of the episodes of the series . Mikey Donovan is a retired NYPD Detective , was a first responder at the World Trade Center on 9/11 , and specializes in interrogation . D. Lee " Doc " Gilbertson has a doctorate in Sociology and a Master of Science in Criminal Justice . Gilbertson is also employed at the National Gang Crime Research Center and is an Executive Editor for the Journal of Gang Research .
9/11
September 11 attacks
Smiley Face Killers: The Hunt For Justice