Watch FBI on TNT. When a brutal serial killer frames an innocent man using a rare genetic anomaly, Special Agent Stuart Scola (John Boyd) and Assistant Special Agent in Charge Jubal Valentine (Jeremy Sisto) must unravel a mind-bending forensic puzzle. A bone marrow transplant left the killer carrying his innocent donor's DNA, sending the wrong man to prison for years. Season 3, Episode 2: Unreasonable Doubt #FBI #TNT #JohnBoyd #JeremySisto SUBSCRIBE: bit.ly/SubscribeTNT Download the TNT App: bit.ly/1GcZDJb About TNT: The home of The Librarians: The Next Chapter, FBI, Charmed, Rich & Shameless, The Alienist, The Lazarus Project, AEW Collision, sports coverage and more. About FBI: The inner workings of the New York office of the Federal Bureau of Investigation. First-class agents -- including Maggie Bell and Omar Adom ""OA"" Zidan -- bring all of their talents, intellect and technical expertise to tenaciously investigate cases of tremendous magnitude, including terror...