CSI (franchise)
CSI (Crime Scene Investigation) is a media franchise of American television series created by Anthony E. Zuiker. The first three CSI series follow the work of forensic scientists as they unveil the circumstances behind mysterious deaths, while the fourth series, CSI: Cyber, emphasizes behavioral psychology and how it can be applied to cyber forensics. CSI: Crime Scene Investigation began on October 6, 2000, and ran for fifteen full seasons. Starring (at various times) William Petersen, Ted Danson, Marg Helgenberger, Elisabeth Shue, and Laurence Fishburne, the series concluded its run with a two-hour finale entitled "Immortality" on September 27, 2015. The series' original lead characters, Gil Grissom and Catherine Willows, were based upon Las Vegas Metropolitan Police Department (LVMPD) Crime Scene Analysts Daniel Holstein and Yolanda McClary.