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 Hall, and California State University, Los Angeles. While shooting took place primarily at Universal Studios in Universal City, California, Santa Clarita's surroundings had proven so versatile, "CSI" still shot some outdoor scenes there. "CSI"'s theme song was, since the last episode of season one, "Who Are You", written by Pete Townshend with vocals by lead singer Roger Daltrey of The Who. Daltrey made a special appearance in the episode "Living Legend", which also contained many musical references such as the words "Who's next" on a dry-erase board in the episode's opening sequence. In certain countries, to avoid music licensing fees,