About CSI: Crime Scene Investigation Season 12, Episode 22 :

The CSI team investigates three dead bodies just blocks away from a campaign dinner, they think they know who the killer is before making a shocking discovery. Guest Stars: Elisabeth Harnois, Elisabeth Shue, Wallace Langham, David Berman, Brooke Nevin, Jaclyn Smith, Barbara Eve Harris, Mike Starr, Peter Onorati, Enrique Murciano, Conor O'Farrell, Billy Magnussen, Craig Sheffer, Jeremy Glazer, Mia Hays, Peri Gilpin, Marc Vann,