CSI: Crime Scene Investigation (season 13) CSI: Crime Scene Investigation (season 13) The thirteenth season of "" premiered on September 26, 2012 on CBS, and ended on May 15, 2013. It stars Ted Danson and Elisabeth Shue. D.B. and Finn hunt for missing Kaitlyn, while Sara convinces Nick to return to the Las Vegas Crime Lab ("Karma to Burn"), in the thirteenth season of "CSI". Russell, Finlay and their team are met with the gruesome, the brutal, and the unusual, including a shootout at the CSI's favorite diner ("Code Blue Plate Special"), the murder of a runaway sex slave ("Wild Flowers"), a body in a piano
CSI: Crime City discover that Monica was receiving unwanted attention from both the hotel waiter, Blake who also moonlights in the hotel spa and Pierre, another hotel guest who had shared drinks and made an unwanted play for Monica on the night of her murder. Upon further investigation CSI discover that Blake seemed to be following Monica around even swapping shifts with a colleague at the spa so that he could 'give it his best shot' with Monica and Pierre who had checked out of the hotel in a hurry leaving behind his expensive but smashed watch at the scene of the crime.