and thus rescind his immunity at any time; he does immediately, allowing the CSIs to arrest Clavo. In season 5, however, Clavo escapes custody after a cohort steals a rocket launcher from a crime scene and blows up the courthouse in which he was being arraigned (#514 – "No Man's Land"). He later lures Caine and Delko into a parking lot to find a hostage, who turns out not to be there. In the ensuing gun battle with his cohorts, Delko is nearly killed when a security guard shoots him in the head (Clavo offered him $100,000 to do so). In the next episode (#515 – "Man Down"), Clavo seeks revenge, killing his adoptive father in the consulate. Later on, Clavo's real father is revealed, and as it turns out, Clavo had smuggled illegal blood diamonds into Miami, and his escape from jail was intended to help his father sell them to underground dealers. One of the dealers is raided and shut down after the plain sight of illegal child labor by Natalia and Ryan. After being disowned by his biological father and having nothing to live for, Clavo returns to "duel" with Caine. Immediately after raising his gun at Caine, he is shot once in the chest by Caine, and dies. IAB Sergeant Rick Stetler (David Lee Smith, seasons 2–8): A disgraced former MDPD SOC Lieutenant and recurring nemesis of Horatio Caine and the Miami CSIs. Horatio was jealous when he was briefly involved romantically with Yelina Salas. When Stetler hit her, Horatio said to him: "Touch her again and I will kill you". She would eventually leave him—and the United States—for her husband in the season 3 finale. His harsh feelings toward Caine stemmed from bitterness over Horatio being promoted to lieutenant instead of him, believing Caine may have pulled in some "special favors" for the job. In season 3, episode "Crime Wave", Stetler later returns to warn Horatio against going after a corrupt city official, saying that he cannot protect him if Caine follows through. "Just like old times", the CSI replies (episode 5.17, "A Grizzly Murder"). Although Stetler often harasses Horatio, he has also been sympathetic and even helpful when he knew that he and the Crime Lab were being harassed/targeted by genuine bad guys. He tells Horatio to try to fight extradition when Horatio is arrested for the murder of Antonio Riaz. As of season