CSI: Las Vegas will enter its fifteenth season with a brand new serial killer by the name of Mr. Briscoe.

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Well, this particular killer will have been locked up for quite sometime but recent copycat murders will bring a new twist the alleged murderer's upcoming execution, according to TV Guide. Arrested year's ago by D. B. Russell (Ted Danson), Mr. Briscoe will also turn out to have a secret twin brother.

With all this new information flooding in, Russell's case will spiral out of control in the upcoming premiere.

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The CSI Writers' Room recently warned viewers that the new season will be "super dark and twisted," and the concept of a season-long killer was also bandied about.

"Hey, did you guys want to do a season-long killer this year?" the CSI Writers' Room asked in early June.

Could Mr. Briscoe be the killer the writing staff was alluding to? Or was the tweet just an unrelated though bubble from the creative minds behind CSI: Las Vegas?

Find out more when CSI: Las Vegas returns to CBS this fall. Click the video below to see a preview of the series' most recent episode.

Tags
CSI: Crime Scene Investigation, Television, CBS