"73 Seconds" -- Catherine Willows (Marg Helgenberger) on the 12th season premiere of CSI, Wednesday, Sept. 21 (10:00-11:00 pm, ET/PT on the CBS Television Network. Photo: ROBERT VOETS/CBS ©2011 CBS BROADCASTING INC. All Rights Reserved.

"73 Seconds" -- Catherine Willows (Marg Helgenberger, left) and D.B. Russell (Ted Danson) are on the public tram where multiple shootings and stabbings took place, on the 12th season premiere of CSI, Wednesday, Sept. 21 (10:00-11:00 pm, ET/PT on the CBS Television Network. Photo: ROBERT VOETS/CBS ©2011 CBS BROADCASTING INC. All Rights Reserved.

"73 Seconds" -- Nick Stokes (George Eads, left) and D.B. Russell (Ted Danson) look for clues after multiple shootings and stabbings on a public tram, on the 12th season premiere of CSI, Wednesday, Sept. 21 (10:00-11:00 pm, ET/PT on the CBS Television Network. Photo: ROBERT VOETS/CBS ©2011 CBS Broadcasting, Inc. All Rights Reserved.

"73 Seconds" -- Nick Stokes (George Eads, left) and D.B. Russell (Ted Danson) look for clues after multiple shootings and stabbings on a public tram, on the 12th season premiere of CSI, Wednesday, Sept. 21 (10:00-11:00 pm, ET/PT on the CBS Television Network. Photo: ROBERT VOETS/CBS ©2011 CBS Broadcasting, Inc. All Rights Reserved.

"73 Seconds" -- Nick Stokes (George Eads, center) and Catherine Willows (Marg Helgenberger) look for clues on the 12th season premiere of CSI, Wednesday, Sept. 21 (10:00-11:00 pm, ET/PT on the CBS Television Network. Photo: ROBERT VOETS/CBS ©2011 CBS Broadcasting, Inc. All Rights Reserved.

"73 Seconds" -- First photo of Ted Danson on-set as lead investigator D.B. Russell on CBS' CSI: CRIME SCENE INVESTIGATION on the CBS Television Network. Also pictured Marg Helgenberger as Catherine Willows and Jorja Fox as Sara Sidle Photo: ROBERT VOETS/CBS ©2011 CBS Broadcasting, Inc. All Rights Reserved.

"73 Seconds" -- Ted Danson as D.B. Russell in CSI: CRIME SCENE INVESTIGATION which begins its 12th season on Wednesday, September 21, 2011 (10:00-11:00PM, ET/PT) on the CBS Television Network. Photo: ROBERT VOETS/CBS ©2011 CBS Broadcasting, Inc. All Rights Reserved.

"73 Seconds" -- Catherine Willows (Marg Helgenberger), D.B. Russell (Ted Danson) and Nick Stokes (George Eads) star in CSI: CRIME SCENE INVESTIGATION which begins its 12th season on Wednesday, September 21, 2011 (10:00-11:00PM, ET/PT) on the CBS Television Network. Photo: ROBERT VOETS/CBS ©2011 CBS BROADCASTING INC. All Rights Reserved.