LANGSTON'S INVESTIGATION INTO THE MURDER OF A FAMILY LEADS HIM ONE STEP CLOSER TO CATCHING THE DR. JEKYLL SERIAL KILLER, ON "CSI: CRIME SCENE INVESTIGATION," THURSDAY, APRIL 8

"Irradiator" - When the CSI team investigates the brutal murder of a family, they trace the killer to the house next door, which might belong to the "Dr. Jekyll" serial killer, on CSI: CRIME SCENE INVESTIGATION, Thursday, April 8 (9:00-10:00 PM, ET/PT) on the CBS Television Network.

SERIES REGULARS:

Dr. Raymond Langston...... Laurence Fishburne
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

RECURRING:

Sara Sidle......................................... Jorja Fox

GUEST CAST:

Officer Akers.............................. Larry Sullivan
Jack Herson................................. Jack Conley
Dr. William Byrne........... John Pyper-Ferguson
Chalo Arua............................ Maurice Compte
Tom Layman................................ Brady Smith
Lisa Layman................................ Deborah Zoe
Gracie Layman.................... Sierra McCormick
Cranky Old Man......................... John O'Leary
Swat Tech................................. John Gammon
Aunt Nellie Porter.................... Jennifer Rhodes
Swat Lt. Jack Parker................. Vincent Duvall
Security Director.......................... Michael Jace
Surgeon....................................... Cory Blevins
Intern......................................... Cat Hammons
Security Guard.............................. Geoff Koch
Paula Grancis.............................. Paula Francis

WRITTEN BY: Bradley Thompson and David Weddle

DIRECTED BY: Michael Nankin

RATING: To Be Announced