journalist to come forward with incriminating evidence pertaining to a gold fraud case. He is shown to be less aggressive in pursuing news due to his kidnapping by the Cabbie Killer and the psychological trauma he received. Rikki Sandoval (played by Jacqueline Piñol in season 4) is Danny's neighbor. Danny actually is better acquainted with her son Ruben than Rikki herself, serving as a sort of big brother to Ruben. On the day that Danny takes Ruben to church to have his bicycle blessed, they run afoul of a bodega robbery and Ruben is killed by accident (4.11 "Child's Play"). Looking to assuage his guilt, Danny begins an affair with Rikki, putting great stress on his relationship with Lindsay. Though Lindsay never mentions or implies that she knows of the affair, Danny believes that she does know. Rikki decides to leave New York for a fresh start, concurring with Danny that their fling had been a mistake (4.19 "Personal Foul"). Jordan Gates (played by Jessalyn Gilsig in season 4) is the New York City mayor's Criminal Justice Coordinator. Her funding helps to rebuild the lab after it is destroyed in a bomb explosion (3.24 "Snow Day"). She has had a good relationship with Mac ever since he helped keep her abusive ex-husband from stalking her. When her ex-husband hires an expert serial killer known only as "Suspect X" to kill Jordan, Mac and his team are able to stop her from succeeding (415 "DOA For A Day"). Quinn Shelby (played by Kristen Dalton in season 4) is a CSI from one of the New Jersey crime labs. She arrives to do a required review of the Crime Lab. Years ago, she had a romantic interest in Mac Taylor and revealed that Mac had kissed her but he regretted it and never took it further out of loyalty to his wife. Samantha Flack (played by Kathleen Munroe in seasons 5, 8–9) is Flack's troubled sister who often gets mixed up in illegal activities (5.01 "Veritas"). Flack has tried numerous times to connect with her but Sam always pushes him away (5.07 "Dead Inside"). In episode 805 "Air Apparent", he finds that she can't get work because of her previous arrests and so he calls in a favor and gets her an interview with NYPD Media Relations. Sam and Flack are both shown to be close to their grandmother and in episode