CSI: Crime Scene Investigation (season 7) chainsaw massacre ("Toe Tags"), a death at a church ("Double-Cross"), a kidnapping ("Burn Out"), a series of miniature killings ("Post Mortem"), the death of identical twins ("Happenstance"), and the return of a 1970s Mob Boss to Vegas ("Living Legend"). Meanwhile, Catherine faces the loss of her father ("Built to Kill"), Greg is assaulted ("Fannysmackin'"), Keppler faces his past ("Law of Gravity"), and the team attempt to hide their amusement when a man is found trapped in concrete ("Loco Motives"). Louise Lombard joins the main cast, and departs at the season's end. <onlyinclude></onlyinclude> CSI: Crime Scene Investigation (season 7) The seventh
CSI: Crime Scene Investigation (season 15) CSI: Crime Scene Investigation (season 15) The fifteenth and final season of "" premiered on CBS on September 28, 2014, and ended on February 15, 2015. The season stars Ted Danson and Elisabeth Shue. Finlay finds her car rigged to explode ("The CSI Effect") as Sara and Greg are quarantined ("Bad Blood") in the fifteenth and final season of "CSI". As Russell and Finn are forced to embark on a hunt for the elusive Gig Harbor Killer, their team investigates a final series of gruesome and unusual cases, including a fatal shooting at a marijuana store ("Buzz Kill"), a chemistry