CSI: Crime Scene Investigation physical evidence to solve murders. The team is originally led by Gil Grissom (Petersen), a socially awkward forensic entomologist and career criminalist who is promoted to CSI supervisor following the death of a trainee investigator. Grissom's second-in-command, Catherine Willows (Marg Helgenberger), is a single mother with a cop's instinct. Born and raised in Las Vegas, Catherine was a stripper before being recruited into law enforcement and training as a blood-spatter specialist. Following Grissom's departure during the ninth season of the series, Catherine is promoted to supervisor. After overseeing the training of new investigator Raymond Langston (Fishburne), Willows is replaced by
Pilot (CSI: Crime Scene Investigation) In exchange for giving him a blank warrant, the judge gets Warrick to place a bet for him on a football game. Grissom takes Holly to her first crime scene, a store robbery, and leaves her there. However, when the store owner pulls a gun on Holly, she requests backup from Catherine. Later, as Holly wonders if she is cut out for this job, Catherine convinces her to stay until she solves her first case and that if she doesn't feel like King Kong on cocaine after she's solved her case, then she can quit. But if Gribbs stays with