Born from an unfinished case

Kevin Gannon spent 20 years with the New York City Police Department, serving as a Sergeant in the Detective Bureau. Over that career he made more than 1,000 felony apprehensions and was awarded almost 100 medals for bravery — retiring as the most highly decorated officer in NYPD history.

He commanded the Bronx Homicide Task Force and Nightwatch from 1999 until his retirement in 2001, and served on Operation I.C.E., Mayor Giuliani's 1997 task force for responding to a major chemical disaster or attack, which brought Department of Defense training in nuclear, biological, and chemical warfare. Gannon received the Medal of Valor twice, in 1994 and 1996, for heroism in the line of duty, and the National Gang Crime Research Center's Frederic Milton Thrasher Award in 2008 for his work on gang crime. He was previously featured on Dick Wolf's homicide series Dead Again.

Tony Duarte brings almost 21 years in law enforcement, built investigating homicide, robbery, burglary, and other high-profile crimes. He served on two major federal task forces targeting organized crime and was recognized with two awards from the U.S. Attorney's Office, 10 Excellence in Police Duty Awards, and five Commendations for Meritorious Service. Like Gannon, he received the Frederic Milton Thrasher Award in 2008 for gang crime investigation.

His technical specialty is data research and electronic audio-video surveillance. Duarte retired from the U.S. Department of Homeland Security, closing out his paid career in law enforcement — but he continues to work the cases that drew him to GDI.

Mike Donovan is a retired NYPD Detective who worked alongside Gannon and Duarte for 20 years. His career ran from patrol officer in the Bronx to the Organized Crime Control Bureau's elite anti-narcotics unit, and finally to the Detective Bureau, where he investigated hundreds of homicides. He was among the first responders at the World Trade Center on September 11, 2001.

Donovan's specialty is the interview room. He reads character and body language, and has a long record of getting witnesses to say more than they realized they knew.

Dr. Gilbertson holds a doctorate in Sociology, with a concentration in gangs and substance abuse, and a Master of Science in Criminal Justice focused on criminology and victimology. He served 16 years in the military, in infantry and signals intelligence, from 1976 to 1992.

He teaches at Saint Cloud State University and has consulted with law enforcement agencies and delivered training in forensic victimology, crime analysis, and gangs. A certified gang specialist who has studied gangs, militias, and extremist groups since 1995, Gilbertson is a staff member of the National Gang Crime Research Center, an Executive Editor for the Journal of Gang Research, and a three-time recipient of the Frederic Milton Thrasher Award.