THE MURDER OF A MOTHER AND HER YOUNG CHILD APPEARS TO BE CONNECTED TO A SUSPECT IN A CSI INVESTIGATION FROM OVER A DECADE AGO, ON A REBROADCAST OF "CSI: CRIME SCENE INVESTIGATION," THURSDAY, MAY 21

Joshua Malina ("The West Wing") Guest Stars

"Woulda, Coulda, Shoulda" - The prime suspect in a murder case from 12 years earlier comes to the forefront of a new CSI investigation, on a rebroadcast of CSI: CRIME SCENE INVESTIGATION, Thursday, May 21 (9:00-10:01 PM, ET/PT) on the CBS Television Network. Joshua Malina ("The West Wing") guest stars. (Originally broadcast 11/20/08)

SERIES REGULARS:

Gil Grissom: William Petersen
Catherine Willows: Marg Helgenberger
Nick Stokes: George Eads
Captain Jim Brass: Paul Guilfoyle
Greg Sanders: Eric Szmanda
Dr. Robbins: Robert David Hall
David Phillips: David Berman
Hodges: Wallace Langham
Wendy Simms: Liz Vassey
Riley Adams: Lauren Lee Smith

RECURRING CAST:

Archie Johnson: Archie Kao

GUEST CAST:

DA Monroe: Joshua Malina
Nora Rowe: Joey King
Peter Rowe: Loren Dean
Kelsey Levin: Alison Pill
Nathan Levin: Billy Lush
Det. Chris Cavaliere: Jose Zuniga
Hal Jackmin: Mike Hagerty
ADA Valerie Nichols: Amy Aquino
Natalie Davis: Jessica Collins
Judge: Michael Ensign
Dr. Wilson: Cyd Strittmatter

TELEPLAY BY: Allen MacDonald

STORY BY: Naren Shankar, one of the series' executive producers, and Allen MacDonald

DIRECTED BY: Brad Tanenbaum

RATING: To Be Announced