CSI: Crime Scene Investigation: Season 9, Episode 4

9 - 4:

It's Halloween and Nick and Riley witness a man dressed as a cop rob a convenience store and then must help the team investigate the death of the daughter of a major drug lord which leads them to a seedy club where Catherine finds Lindsey on the dance floor. Wendy and Dr. Robbins clash when the victim is revealed to have three blood types in her body and two of them are male.