CSI: Crime Scene Investigation (season 7) CSI: Crime Scene Investigation (season 7) The seventh season of "" premiered on CBS on September 21, 2006 and ended May 17, 2007. The series stars William Petersen and Marg Helgenberger. Catherine heads to a small town in Nevada ("Leaving Las Vegas") as Grissom and Sara continue their affair ("Living Doll"), in the seventh season of "CSI". Supervised by Grissom and Willows, the Las Vegas Crime Scene Investigators face both personal and professional challenges as Grissom says goodbye, and new CSI Michael Keppler joins the team ("Sweet Jane"), as they investigate the bizarre, the brutal, and the unprecedented, including a
Kitty (CSI: Crime Scene Investigation) Kitty (CSI: Crime Scene Investigation) "Kitty" is an episode of . Kitty introduced FBI Agent Avery Ryan from which this episode served as the backdoor pilot of the series. Despite being credited Jorja Fox and Jon Wellner who portray Sara Sidle and Henry Andrews do not appear in this episode (although the latter does appear in a deleted scene). The episode begins with a house's security system being disabled. Then a dark figure walks into a bedroom and murders the woman in the bedroom. The scene cuts to Jim Brass (Paul Guilfoyle) yelling orders at the police officers and trying