12x09 January 9, 1999 (January 09, 1999)

Cases Profiled: Shad Armstrong, Charles Brackett, Brown's Chicken killers, Linda Crouch, Roger Crouch, Alan Golder, Eugene Linder, Russette Medina, Melvin Menendez, Israel Rivera-Sanchez, David Schullman killer, Juan Reyes, Kenneth Armstrong, Mikelle Biggs, Travis Crouch

12x08 January 2, 1999 (January 02, 1999)

This episode features: Teresa Dickson's Killer(s, Jamie Edwards, Alvaro Ochoa, Mario Pallanga, Robert Jackson, Leah Rowlands' Killer and Shannon Schiber's Killer.

12x07 December 19, 1998 (December 19, 1998)

This episode features: Janette Piro Killer, Christopher Benedetto, James Kopp, Rachel Newhouse, Carlton Edwards, John Feiga, Orange Socks Jane Doe, Stephen Toussaint, Jimmy Turner, Michael Reese, Elrick Wynn

12x06 December 12, 1998 (December 12, 1998)

This episode features: Amber Creek Killer, James Kinney, Jeffrey Durham, and Donald Eary.

12x05 December 5, 1998 (December 05, 1998)

This episode features: Amy Bradley, Michael Cleary, Carlos Chacon, Bernardo Martinaj, Ephraim Mistica, Rodrigo Leones, Dennis Rabbitt, Unknown Rodeo Molester, Robert Owens III, and Rosa Suarez

12x04 November 21, 1998 (November 21, 1998)

This episode features: John Addis, Michel Barrera, Stephanie Condon, David and Martha Crowe, Jonathon Goforth, Anna Palmer Murder Witness, Jose Silva, Eric Stein and Barry Zeltner.

12x03 November 14, 1998 (November 14, 1998)

Cases Profiled: James Johnson, Zodiac serial killer, Douglas Berry, Gregory Brown, Roy McColl, Andrea Baird, Michelle Delfi-Feliciano, Christina Williams

12x02 November 7, 1998 (November 07, 1998)

12x01 October 31, 1998 (October 31, 1998)