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 6) CSI: Crime Scene Investigation (season 6) The sixth season of "" premiered on CBS on September 22, 2005 and ended May 18, 2006. The series stars William Petersen and Marg Helgenberger. Brass, now partnered with Sofia Curtis, finds himself caught in a shootout that leaves one officer dead, and a Latino community enraged ("A Bullet Runs Through It"), before finding himself critically injured in a hostage standoff ("Bang-Bang"), in the sixth season of "CSI". Meanwhile, Grissom and Willows reunite in order to investigate their toughest cases yet, including the death of a movie star ("Room Service"), a corpse discovered at