
Can You Spot a Serial Killer? BTK, Son of Sam, and What the FBI Found - Part 2
From Heroes Behind the Badge by Citizens Behind the Badge
March 26, 2026 · 35 min · Episode 46
About this episode
Mark Olshaker discusses the psychology of serial killers and the chilling case of BTK in this episode of Heroes Behind the Badge.
In Part 1 , Mindhunter co-author Mark Olshaker traced how FBI legend John Douglas unlocked the psychology of serial predators through audacious prison interviews and left us at the doorstep of the most baffling double life in American criminal history. Part 2 opens there: how does a church president, Boy Scout leader, and devoted family man spend decades as BTK - one of the most feared serial killers in the country - while everyone around him has no idea? In this Part 2 conversation with hosts Craig Floyd, Dennis Collins, and Bill Erfurth of Heroes Behind the Badge, Olshaker unpacks Dennis Rader's chilling compartmentalization, the "homicidal triad" warning signs that may identify a serial predator before they strike, and the psychological evolution of David Berkowitz from setting 1,000 fires to terrorizing New York City as the Son of Sam. He also draws a sharp line between serial killers - who expect to get away with it - and mass murderers, who don't. Bill Erfurth brings it to street level with a real serial killer arrest that ended at a Wendy's drive-through with a punchline no screenwriter would dare write. The episode closes on two of the hardest questions in the field: why…
People in this episode
Hosts: Craig Floyd, Dennis Collins, Bill Erfurth
Guest: Mark Olshaker
Topics covered
- serial killers
- psychology
- law enforcement
- crime
- FBI
- true crime
Keywords
- BTK
- Son of Sam
- serial killers
- FBI
- psychology
- homicidal triad
- Dennis Rader
- David Berkowitz
Mentioned in this episode
Organizations: Heroes Behind the Badge
More episodes of Heroes Behind the Badge
- Sheriff Mike Neal — The Walmart Shooting and What He Brought Home | Part 2 · June 4, 2026 · 31 min
- Sheriff Mike Neal — 16 Years of Survivor Guilt After the West Memphis Ambush | Part 1 · June 2, 2026 · 34 min
- Rafael A. Mangual - The Data Behind "Criminal [In]Justice" | Part 2 · May 21, 2026 · 39 min
- Rafael A. Mangual - Why Killers Walk While Cops Go to Prison | Part 1 · May 19, 2026 · 33 min
- Blake Boteler — The Bounty, the Arrests, and the Funeral That Never Happened | Part 2 · May 7, 2026 · 29 min
- He Spent 2 Years Undercover With the Sons of Silence (Part 1) | ATF Agent Blake Boteler · May 5, 2026 · 39 min
Explore listener stats, chart rankings, contacts and more on the Heroes Behind the Badge podcast page.