Warrick Brown admits he left Holly alone to place a bet for a corrupt judge. While Grissom ultimately decides not to fire him, Warrick remains "owned" by Judge Cohen, who demands repayment for a losing bet. Laboratory Leadership Changes

DNA under Holly’s fingernails matches the suspect, Jerrod Cooper, leading to his arrest. Tragically, Holly dies during her operation.

Catherine Willows takes charge of finding Gribbs' shooter, while Sara Sidle arrives to investigate internal protocol.

Catherine recovers a pager from the scene and tricks the owner into meeting her.

While his girlfriend Jamie claims he threw her out, the team finds roof dust on a another suspect (Carleton) but none on Ted, proving Ted didn't jump from the roof himself.

Jorja Fox joins the cast as Sara Sidle , a CSI from San Francisco. Major Plot Points and Investigations

In the second episode of the original CSI: Crime Scene Investigation series, titled the Las Vegas Crime Lab undergoes a major leadership shift following the tragic shooting of rookie Holly Gribbs. Episode Overview Title: " Cool Change " Original Air Date: October 13, 2000 Director: Michael Watkins