an auto body shop, Oak attempts to force a confession out of a pair of suspects. Tellis is increasingly suspicious of Oak's tactics. Tellis finds police-issue guns in a car belonging to one of the suspects, including one that belonged to Calvess. Oak beats both men until Tellis tells him to get CSI tools from the car. When Oak leaves the room, Tellis locks the door and asks for the truth from the suspects. They explain that Calvess, who had fallen into drug addiction, blew Tellis' cover eighteen months before and caused the shooting. On the day of the murder, Calvess tried to deal with the two dealers, but it went badly. According to their story, Oak arrived, having trailed Calvess to confirm rumors that he was an addict. Calvess went for his weapon, which was the dealers' justification for attacking him. The two men ran off as Oak shot at them. Tellis confronts Oak and accuses him of murdering Calvess, which Oak denies. Tellis then raises the issue of Oaks' relationship with Calvess' wife, Kathryn. Kathryn was the ten-year-old girl who was pimped out by her stepfather. Oak considers her the daughter he never had and has remained close. He has been protecting her by covering crimes she committed in her teenage years. Tellis tells Oak he will make the arrest and Oak beats him with the shotgun and resumes brutalizing the dealers. Oak turns the tape recorder on and attempts to beat a confession out of the men, threatening to shoot them. Tellis breaks into their car, retrieves a gun, calls for back-up, and re-enters the building. He shoots Oak when Oak refuses to put his gun down. Tellis moves to aid Oak and, realizing he's dying, pleads for the truth of what happened the night Calvess died. Oak explains that Calvess shot at the dealers as they fled from Oak, leaving the shoulder wound. Oak argued with him, explaining that he had had enough of defending Calvess and would turn him in to the department. In despair, Calvess shot himself. Oak had been protecting his name and family so Calvess' wife could receive his pension. Oak's motive was to convict the dealers, whom he felt had made Mike a junkie. Oak dies in Tellis' arms, leaving the confession on tape and Tellis with only moments to decide what to do with it. Cast Production Development The script