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
Kitty (CSI: Crime Scene Investigation) to get rid of the press. Nick Stokes (George Eads) catches up with a suspect (Gil Bellows) and tests him for GSR which comes back positive so he is arrested. D.B. Russell (Ted Danson) enters the house and he notices that the technology seems to follow him and the lights turn on when he walks past them. Greg Sanders (Eric Szmanda) tells D.B. that he believes the house is a smart house. While Julie Finlay (Elisabeth Shue) is taking crime scene photos, Al Robbins (Robert David Hall) gives a brief belief of what he believes happened. When D.B. looks through