About CSI: Crime Scene Investigation Season 7, Episode 23 :
Lady Heather returns when she is found injured after a meeting with a client. She was assaulted, but she didn't react in self defense. When Brass and Catherine come back to the crime scene, they find one of the security guards dead. Meanwhile, Nick and Warrick investigate when the body of a woman is found on a street; further investigation reveals that she was hit in the head by a car. Guest Stars: David Berman, Melinda Clarke, Jessie Ward, Todd Williams, JR Bourne, Joe Penny, Shang Forbes, Rif Hutton, Omid Abtahi, Vic Polizos, Conor Dubin, Jason Sweat, Sonya Eddy, Shelli Bergh, Victoria Prescott, Louise Lombard, Liz Vassey, Archie Kao, Larry Mitchell,
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