THE CSI TEAM INVESTIGATES THE BRUTAL MURDER OF AN INMATE AT A STATE MENTAL HOSPITAL, ON "CSI: CRIME SCENE INVESTIGATION," THURSDAY, APRIL 28

"Committed" -- Grissom and Sara investigate the brutal murder of an inmate at a locked-down state mental hospital, on CSI: CRIME SCENE INVESTIGATION, Thursday, April 28 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Richard J. Lewis directed the episode and wrote the teleplay, from a story by Sarah Goldfinger and Uttam Narsu.

When a brutal murder is committed at a state mental hospital, Grissom and Sara realize only a handful of residents and staff could be responsible for the killing. Meanwhile, Catherine and her team look into the death of young man whose body was found in a crop circle and shows no outward or inward signs of what killed him.

Gil Grissom: William Petersen
Catherine Willows: Marg Helgenberger
Warrick Brown: Gary Dourdan
Nick Stokes: George Eads
Captain Jim Brass: Paul Guilfoyle
Sara Sidle: Jorja Fox
Greg Sanders: Eric Szmanda
Dr. Robbins: Robert David Hall
David Phillips: David Berman
Sophia Curtis: Louise Lombard
Hodges: Wallace Langham
Archie: Archie Kao
Nurse Nanette Faber: Monique Edwards
Nurse Joanne McKay: Annie Corley
Earl Simmonds: Harry Perry
Charles Pellew: Christian Clemenson
Robbie Garson: Kristoffer Winters
Kenny Valdez: Richard Wharton
Phil Boyd: David Bowe
Jake Wernerer: Jason Matthew Smith
Lt. Owens: Chris Williams
Leon Rodriguez: Jon Huertas
Ronald Salter: Michael Reid Mackay
Roman Wolenski: Zitto Kazann
Adam Trent: James Badge Dale
Dr. Diane Dino: Robin Weigert
Kevin Stanland (stunt): Greg Anthony
Morgan Wendel: Roger Ranney
Tucker: Ken Garito
Tucker's Attorney: Michael Holden
Glen Frydman: Allan Kolman

RATING: To Be Announced