Synopsis by Hal Erickson
Three people are killed in a car bombing outside a Vegas casino. One of the victims was the driver, who turns out to be a federal air marshal. Under pressure from the higher-ups to solve the case, Sheriff Atwater (Xander Berkeley) runs with the prevailing theory that the bombing was an act of terrorism -- but CSI chief Grissom (William L. Petersen) isn't about to hoist the red flag just yet. Meanwhile, Sara (Jorja Fox) and Warrick (Gary Dourdan) investigate the murder of a woman whose husband is a popular Vegas singer.