TWO CSI INVESTIGATIONS INTERTWINE WHEN A WOMAN'S SUICIDE IS LINKED THROUGH EVIDENCE TO THE MURDER OF AN ENTIRE FAMILY, ON A REBROADCAST OF "CSI: CRIME SCENE INVESTIGATION," ON A SPECIAL NIGHT, TUESDAY, JAN. 17

"Spark of Life" -- A woman's suicide in the Vegas wilderness is linked through evidence to the murder of a suburban family, on a rebroadcast of CSI: CRIME SCENE INVESTIGATION, on a special night, Tuesday, Jan. 17 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Ken Fink directed the episode written by Allen MacDonald. (Originally broadcast 3/31/05)

Grissom discovers a connection between the fiery suicide of a woman in the Vegas wilderness and the slaughter of an entire family in a suburban home. The evidence exposes a couple's infidelity, as well as the unthinkable results of one woman's desperate attempt to get pregnant.

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
Mia Dickerson: Aisha Tyler
Detective Vartan: Alex Carter
Chief Dysart: Lennie Loftin
Tara Matthews: Lina Patel
E.R. Nurse: Anna Lumarque
Michael Bryan French: Dr. Frank
Corinne Stewart: Aimee Miles
Morgan Stewart: Jeffrey Johnson
Patrick Bromley: Justin Kirk
Dani Stewart: Daylia Sky Wallace
Neal Matthews: Tim DeKay
Annabelle Frost: Heather McComb
Brad Lewis: Terry Bozeman
Tim (Stargazer): Alex Wexo

RATING: TV14-LSV