Cool Change

In the aftermath of the Holly Gribbs shooting, Captain Brass is demoted and reassigned as a homicide detective, with Gil getting promoted to full head of the CSI unit. Grissom brings in Sara Sidel, an investigator he knows from San Francisco, and assigns her to the case, much to the displeasure of Catherine, who felt guilty about some things she said to Holly before the shooting, and wanted the case for herself. Grissom and Nick investigate the apparent suicide of a man who, hours before, had won a large casino jackpot. Warrick, who left Holly alone at the scene in violation of standard procedures, is up for suspension as a result, even as he is pressured from the other side by a corrupt judge.