S18 E1 • September 11, 2004

Cases Profiled: Alfonso Fowle, Jahbir Fowle, Ali Kemp killer, Larry Raifsnider, Kevin Nolen, Paul Eischeid, Douglas Wistrom, Adnan El Shukrijumah, Darryl Williams Captures Profiled: Edward Raifsnider

Première diffusion : 11 septembre 2004

S18 E2 • September 18, 2004

Cases Profiled: Brian Jones, Alfonso Fowle, Jahbir Fowle, Jeffery Manchester, Rason Horton, Sherlyn Fleming killer, Jason Richards, Eric Watkins, Mikhail Drachev.

Première diffusion : 18 septembre 2004

S18 E3 • September 25, 2004

Cases Profiled: Damar Pink, Danny Moran, Lucian Kozminski, Rebecca Braun, Mark Jackson Captures Profiled: Shawn Windsor, Butch Hinton (Shannon Melendi killer)

Première diffusion : 25 septembre 2004

S18 E4 • October 2, 2004

Cases Profiled: Antonio Delacruz, Daniel Farinholt, Armando Garcia, Emigdio Preciado, Mark Everett, Matthew Glover, Benjamin Everett, Molly Dattilo Captures Profiled: Rason Horton

Première diffusion : 2 octobre 2004

S18 E5 • October 22, 2004

Cases Profiled: Helen Walker killer, Jerred Hernandez, Scott Brinegar, Frederick Rosato, Phillip Ferguson, Juan Marte Captures Profiled: Donald Crosby

Première diffusion : 22 octobre 2004

S18 E6 • November 6, 2004

Cases Profiled: Gary Lasher, Arnulfo Vargas, William Barefoot, Gonzalo Harrell-Gonzalez, Billy Brossman killer Captures Profiled: Cole Ford, Darryl Williams

Première diffusion : 6 novembre 2004

S18 E7 • November 13, 2004

Cases Profiled: Juan Nieto, Katie Sepich killer, Crystal Vigil, Las Cruces killer #1, Las Cruces killer #2, Gary Lasher, You Zhu Captures Profiled: Reinaldo Silvestre

Première diffusion : 13 novembre 2004

S18 E8 • November 20, 2004

Cases Profiled: Kimberly Alvarado, Marissa Pomarico, Hazel Head, Monique Bell, Rashan Boone, Lexie Fennell, Justin Scaglione, Ran Mesika, Key West Baby Doe, Valentine's Jane Doe, Possible Key West Baby Mother, Possible Key West Baby Father, Possible Key West Baby Friend Captures Profiled: Desiree Lingo-Perkins

Première diffusion : 20 novembre 2004

S18 E9 • December 4, 2004

Cases Profiled: Lucian Kozminski, Avelino Alvarado, Rufino Castaneda, Timothy Coombs, Francisco Guzman, Tobias Lee, Bao Luong, Timothy Marino, Damar Pink, BTK serial killer, East attempted abductor, Jesus Alvarado Captures Profiled: William Barefoot

Première diffusion : 4 décembre 2004

S18 E10 • December 11, 2004

Cases Profiled: BTK serial killer, John Addis, Victor Gerena, Sophie David, Phillip Hughes, Emily Rimel Captures Profiled: Benjamin Appleby (Ali Kemp killer), Tobias Lee

Première diffusion : 11 décembre 2004

S18 E11 • December 18, 2004

Cases Profiled: Emigdio Preciado (10), Paul Eischeid (9), Gary Lasher (8), Mark Everett (7), Greisy Valencia (6), Damar Pink (5), Timothy Marino (4), William Plemons (3), Jahbir Fowle (1/2), Alfonso Fowle (1/2), Benjamin Everett, Joanna Rogers

Première diffusion : 18 décembre 2004

S18 E12 • January 1, 2005

Cases Profiled: Helen Walker killer, Jerred Hernandez, Scott Brinegar, Vickie Nash, Phillip Ferguson, Rosa Sandoval Captures Profiled: Donald Crosby

Première diffusion : 1 janvier 2005

S18 E13 • January 8, 2005

Cases Profiled: Jason Brown, Anita Raughton, Jacer Medina, Justin Smith, Internet Jane Doe, BTK serial killer, Littleton suspect #1, Littleton suspect #2, Heaven Ross, Shelbie Smith Captures Profiled: Eduardo Flores, Tobias Lee

Première diffusion : 8 janvier 2005

S18 E14 • January 22, 2005

Cases Profiled: Arnulfo Vargas, Alejandro Romero, Angel Salgado, Cesar Lucero, David Drain, Eric Dahlman, Andre Neverson, Rudolfo Negrete, Larry Woods, Steven Sanchez, Brianna Maitland, BTK serial killer Captures Profiled: Chaunson McKibbins, Frederick Rosato, Teri Anderson, Kevin Nolen

Première diffusion : 22 janvier 2005

S18 E15 • January 29, 2005

Cases Profiled: Jason Brown, Fethi Jelassi, Robert Fisher, BTK serial killer, Katlyn Collman, Jason Brown witness Captures Profiled: John Stoneman, Patricia Kelley, Frederick Fretz

Première diffusion : 29 janvier 2005

S18 E16 • February 5, 2005

Cases Profiled: Loren Trites, Marvin Mercado, Stephanie Meares, Francisco Guzman, Dustin Pino, BTK serial killer, Lake Pontchartrain Jane Doe, Lisa Sexton, Ashley Martinez Captures Profiled: Jeffrey Manchester

Première diffusion : 5 février 2005

S18 E17 • February 19, 2005

Cases Profiled: Elber Vazquez, Armanious family killer, Russell Winstead, Carey Price, John Hemmers, Ronald Lennon, Robert Short, Jason Brown, Brent Brents Captures Profiled: Jerry Wiggins (Monica Valdizan killer)

Première diffusion : 19 février 2005

S18 E18 • February 26, 2005

Cases Profiled: Craig Petties, Mark Everett, Ignacio Bahena, Randy Yager, Emigdio Preciado, Chaka Raysor, Wayne Chin, Riverside armored car killer, Benjamin Everett, Jessica Lunsford, Alexis Patterson, Nancy MacDuckston, Nancy MacDuckston companion Captures Profiled: Daniel Farinholt, Dennis Rader (BTK serial killer)

Première diffusion : 26 février 2005

S18 E19 • March 5, 2005

Cases Profiled: Angel Mendoza, Andre Neverson, Michele Comstock, Frederick Wanamaker, Michael Lefkow/Donna Humphrey killer, Yvette Martinez, Tamika Huston, Samuel Porter, Lindsey Porter, Jessica Lunsford Captures Profiled: Dennis Rader (BTK serial killer)

Première diffusion : 5 mars 2005

S18 E20 • March 12, 2005

Cases Profiles: Joaquin Guzman-Loera, David Anguiano, Juan Carlos De La Reyna, Charles Jackson, Misty Jackson, Victor Vargas, Joseph Shegog, Marcus Head, David Saracino, Yvette Martinez, Brenda Cisneros, Gina DeJesus, Jessica Lunsford, Danielle Imbo, Richard Petrone Captures Profiled: Dustin Pino, Jesse Hollywood, Alfonso Fowle, Jahbir Fowle

Première diffusion : 12 mars 2005

S18 E21 • March 19, 2005

Cases Profiled: Fairmount Park killer, Chas Berry, Russell Winstead, Paulo Lopez-Garcia, Christian Lopez, Lawrence Wayne, Raheem Edwards, Mark Degner, Bryan Hayes Captures Profiled: Jason Mori

Première diffusion : 19 mars 2005

S18 E22 • March 26, 2005

Cases Profiled: Daniel Hiers, Gary Lasher, Michel Barrera, Jorge Lopez-Orozco, Joseph Burgess, Jason Allen/Lindsey Cutshall killer, Bianca Piper Captures Profiled: John Couey, Jahbir Fowle, Alfonso Fowle

Première diffusion : 26 mars 2005

S18 E23 • April 2, 2005

Cases Profiled: Mustapha Atat, Jason Brown, Rashawn Capers, Mikhail Drachev, Peter Hommerson, Christian Rodriguez, Greisy Valencia, Amanda Berry, Gina DeJesus, Jason Brown witness Captures Profiled: Jesse James Hollywood

Première diffusion : 2 avril 2005

S18 E24 • April 9, 2005

Cases Profiled: Joel Urena, Sajjad Rasheed, Michael Soutar, Teddy Ellis, Troy Smith, Rashawn Capers Captures Profiled: Randolph Dial, Dino Smith, Bobbi Parker (Recovery)

Première diffusion : 9 avril 2005

S18 E25 • April 16, 2005

Cases Profiled: Kenneth Cofer, David Lopez, Ruben Lopez, William Fischer, Angelo Ravella killer, Sarah Lunde Captures Profiled: Fabian Smart, Willie Williams, Jermaine Ballard, Quincy Teel

Première diffusion : 16 avril 2005

S18 E26 • May 14, 2005

Cases Profiled: Marcelo Montalvo, Francisco Diaz-Marroquin, Ivan Villa, Daniel Hiers, Mark Grossi, Sebastian Barba, Raul Garcia-Gomez, William Looney, Ronald Fischer, Gerren James, Justin Black, Tracey Gardner-Tetso Captures Profiled: Russell Winstead

Première diffusion : 14 mai 2005

S18 E27 • May 21, 2005

Cases Profiled: Phillip Williams, Emanuel Veiga, Idaho triple murderer, Shasta Groene, Dylan Groene, Pamela Waldher Captures Profiled: David Saracino

Première diffusion : 21 mai 2005

S18 E28 • May 28, 2005

Cases Profiled: Martin Altamirano, John Addis, James Moran, Joanne Chesimard, Walentina Knapek, Sgt. Greg Martin killer, Idaho triple murderer, Dylan Groene, Shasta Groene, Lindsay Harris Captures Profiled: Phillip Williams

Première diffusion : 28 mai 2005

S18 E29 • June 4, 2005

Cases Profiled: John Lockhart, Artur Martirosyan, Anibal Mustelier, Malaika Griffin, Daniel San Diego, Casey Jo Pipestem killer, Natalee Holloway, Brooke Wilberger. Captures Profiled: Juan Nieto

Première diffusion : 4 juin 2005

S18 E30 • June 11, 2005

Cases Profiled: Domingo Valdez, Douglas Holler, Mark Everett, Rogelio Deaquino, Andre Neverson, Elby Hars, Lake Pontchartrain Jane Doe killer, Victor Hernandez, Benjamin Everett, Ana Acevedo, Lisa Sexton. Captures Profiled: James Johnson

Première diffusion : 11 juin 2005