What makes a serial killer confess to another inmate?

Author of Through the Lens of a Monster and death row survivor William Noguera spent over four decades on death row at San Quentin—living alongside the most notorious killers in American history. Behind prison walls, he gained the trust of serial killer Joseph Naso, leading to new revelations that helped identify four previously unsolved murders linked to Naso.

These discoveries inspired the Oxygen True Crime original docuseries Death Row Confidential: Secrets of a Serial Killer. In this episode, William recounts how he worked with Detective Ken Mains to uncover hidden truths, helping close cold cases and expose “Dirty Joe”—a sadistic sexual predator who fooled even seasoned investigators.

He breaks down how the criminal mind operates behind bars and reveals what drives killers to confess. This is a rare, unfiltered glimpse into the psychology of true evil—told by the man who lived among it. What William shares here may forever change how you define the word monster. 


Chapters
00:00 Introduction to Killer Psychologist
00:49 William Noguera's Journey from Death Row
04:47 The Role of Collaboration in Solving Cases
10:02 Insights from Serial Killers: A Unique Perspective
14:59 The Justice System and Its Flaws
19:56 Understanding Joseph Naso: The Prolific Killer
24:54 The Importance of Awareness and Education
30:06 The Role of Rehabilitation in Criminal Justice
34:59 The Ongoing Fight Against Serial Killers
40:00 Future Collaborations and Projects
44:40 Concluding Thoughts and Call to Action


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