AUGUST 22nd 2021: Actor William Petersen - best known for his role as Gil Grissom on the CBS drama series "CSI: Crime Scene Investigation" - has been hospitalized for exhaustion after falling ill on the film set of the sequel series "CSI: Vegas" on Friday, August 20th. - File Photo by: zz/Michael Germana/STAR MAX/IPx 2006 1/10/06 William Petersen at the 32nd Annual People's Choice Awards held on January 10, 2006 in Los Angeles, California.

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