CSI is a media franchise of American television programs 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 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 LVMPD Crime Scene Analysts Daniel Holstein and Yolanda McClary. CSI first spin-off and the second series within the franchise is CSI: Miami, which ran for ten seasons between 2002 and 2012 and was canceled on May 13, 2012. Miami stars David Caruso and Emily Procter, with its lead character, Horatio Caine, based upon LAPD bomb squad technician Detective John Haynes.