A SERIES OF MURDERS IN SAN FRANCISCO BEARING THE MARKS OF THE INFAMOUS ZODIAC KILLER HAVE THE BAU WONDERING IF THE NOTORIOUS SERIAL KILLER IS BACK, ON A REBROADCAST OF "CRIMINAL MINDS," WEDNESDAY, MAY 23

Bestselling Crime Novelist Patricia Cornwell Guest Stars as Herself, As a Guest at a Violent Crime Seminar Attended by Reid and Prentiss

"True Genius" - A series of murders in San Francisco bearing the tell-tale signs of the infamous Zodiac Killer have the BAU wondering if the notorious serial killer has returned. Also, Reid ponders if he should be doing more with his genius abilities, on a rebroadcast of CRIMINAL MINDS, Wednesday, May 23 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Bestselling crime novelist Patricia Cornwell guest stars as herself, as a guest at a violent crime seminar attended by Reid and Prentiss. (Originally broadcast 1/18/12.)

SERIES REGULARS:

Joe Mantegna (David Rossi)
Thomas Gibson (Aaron Hotchner)
Paget Brewster (Emily Prentiss)
Shemar Moore (Derek Morgan)
Matthew Gray Gubler (Dr. Spencer Reid)
A.J. Cook (Jennifer "JJ" Jareau)
Kirsten Vangsness (Penelope Garcia))

GUEST CAST:

Jeff Newburg (Caleb Rossmore)
Claudia Choi (Agent Rebecca Lin)
Finn Wittrock (Harvey Morell)
Marissa Armijo (Marisa Devon)
Jonny Jay (David Atley)
Christine Garver (Nicole Puli)
Patricia Cornwell (Patricia Cornwell)
Joseph Fuhr (Dan Feinberg)
Bill Frenzer (Hippie)
Josh Latzer (Park Supervisor)
Brett Weinstock (Best Man)
Toni Sawyer (Mrs. Zablonsky)
Danny Goldman (Det. Zablonsky)
Jimbo Barnett (Roger Smith)
David Fraioli (Messenger)
Michele Dawson (Tara Henson)
Frank Marshall (Alec Wyseck)
Alexandra Choi (Reporter)

WRITTEN BY: Sharon Lee Watson

DIRECTED BY: Glenn Kershaw

RATING: To Be Announced