In this episode, we’re introduced to: Nick Poulos, Blackwater's detail leader; TJ Hill, a mechanic working for Blackwater, and Keith George, Blackwater's  Iraq protection leader. Each of the men recounts his memories of the Nisour Square Incident, and where the government’s inquiry went off track.And Gina sits down with former Raven 23 vehicle commander Tommy Vargas, who has recently found long-buried information