Rotten Mango – "I Sat Down With A Killer" (August 18, 2025) – Episode Summary
Main Theme & Purpose
In this intense and harrowing episode of Rotten Mango, Stephanie Soo sits down with Clark Fedrix, a self-confessed killer who murdered Dennis Pegg, a man he alleges abused him—and many others—for decades. The episode is a deep dive into the psychology of both the abuser and the avenger, exploring the cycles of trauma, vengeance, the failings of the justice system, and the generational ripple effects of abuse. Through Clark’s firsthand account, listeners are confronted with questions about justice, survival, and the true cost of trauma.
Key Discussion Points & Insights
The Crime Scene and Immediate Aftermath
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[01:12] Detective Ryan finds Dennis Pegg dead in his home—blood everywhere, clear signs he was “hunted” and killed violently, not a quick crime. Key evidence includes a distinctive bloody footprint right outside the master bedroom.
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[04:16] Clark recalls leaving the crime scene injured, bleeding from a knife wound to his hand. He describes feeling more focused on not bleeding out than escaping.
"I was bleeding severely... I was not even thinking about getting away with it. I was thinking about stopping the blood flow." — Clark Fedrix [04:16]
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[06:05] The next morning, police surround Clark’s house. He feels his life is over.
"I'm thinking life is over." — Clark Fedrix [06:26]
Clark’s Psychological State & Motive
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[06:39] Clark admits to feeling almost nothing upon seeing the graphic crime scene photos, describing the murder as “horrific” but not something he rejoices over.
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The court and psychiatrists were perplexed—Clark is not psychotic, does not fit the profile of a typical murderer, and claims no remorse for killing Dennis.
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The entire town rallies behind Clark, with “Free Clark” bumper stickers becoming ubiquitous.
"The short answer is he was a monster." — Clark Fedrix, on why he killed Dennis Pegg [09:44]
"He had a 45 year reign of terror...raping boys." — Clark Fedrix [09:50]
The Early Years: Grooming and Abuse
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[10:13] Clark, born with a hole in his heart (his “zipper” scar), recounts how Pegg began grooming him as a child, using the scar as a pretext for inappropriate touch.
"He was my brother's boy scout leader...family friend." — Clark Fedrix [11:03] "A predator is a chess master… I don't think he cared two hoots about my scar. It was just an avenue." — Clark Fedrix [16:17]
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Pegg established trust and secrecy through manipulation—confiding, gift-giving (e.g., a knife sharpener for Clark's hunting knife), alcohol, and exposure to pornography and physical touch (wrestling).
"He’d wrestle you, then his eyes would go black...pin me to the ground...start gyrating." — Clark Fedrix [33:37]
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Clark’s haunting memory of Pegg’s “meaty fingers” becomes a recurring sensory motif of the trauma.
Patterns of Control and Violence
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Pegg's cruelty toward animals—stomping on sunfish, biting goldfish in half—was a performance of dominance meant to instill fear in young boys.
“That’s what you do to things that are worthless.” — Dennis Pegg (recounted by Clark) [17:30]
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The abuse escalates over years from secrecy and grooming to overt sexual violence and sadism, including threats and demonstrations of lethal force (e.g., beating his dog to death as a warning).
"He brought his dog over to me and said, I want to show you what will happen to you if you ever open your mouth..." — Clark Fedrix [37:19]
The Long-Term Effects of Trauma
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Clark internalizes shame and guilt, carrying the blame for Pegg’s actions toward others (including the dog).
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Over three decades, Clark buries the trauma, which manifests as substance abuse and psychological unraveling.
"I led the most exhausting life because I would crank on a smile to the world. And inside I was completely broken." — Clark Fedrix [44:01]
The Encounter That Changed Everything
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[45:26] Thirty-three years later, Clark sees Pegg at a convenience store with another young boy, triggering intense distress and a mental breakdown.
“He had a young boy by his side… and the boy called him by the same nickname he made me use.” — Clark Fedrix [45:54]
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Unable to cope, Clark spirals into addiction, unemployment, and obsession with preventing future victims.
Confession and the Decision to Kill
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The breaking point comes when Clark, after 33 years, confides in his friend Bob and decides to confront Pegg—armed only with the knife Pegg taught him to sharpen.
"It wasn't planned… I handed him the knife...let's just go confront this piece of garbage." — Clark Fedrix [58:53]
The Night of the Murder: A Suicide Mission
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Clark and Bob enter Pegg’s house. A brief, violent struggle ensues, ending with Clark killing Pegg in an act he describes as rage-filled, not calculated.
"I raced across the room...started slashing...I said, 'It's not so fun little boys now, is it, Dennis?' And I slit his throat." — Clark Fedrix [61:41]
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Symbolically, Clark spits on the bed where the abuse occurred.
"To bring things full circle and to a closure, I needed to do that." — Clark Fedrix [72:45]
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He feels no catharsis, only the end of his own life as he knew it.
"You don't heal from trauma by adding more trauma...I knew walking out of his house that night that my life was over." — Clark Fedrix [63:02]
Aftermath, Arrest, and Law Enforcement’s Complicity
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Clark is arrested after unsuccessfully considering suicide by cop. His mother tries to help him escape before the police arrive; she cleans blood to hide evidence.
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In a surprise twist, Lieutenant Howie Ryan, the crime scene investigator, apologizes to Clark for law enforcement’s failure:
"I've heard rumors about Dennis Pegg for a long time...I want to apologize for never stopping him. I can't arrest someone on rumors...and I apologize to you." — Howie Ryan, as recounted by Clark [81:30]
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Clark notes the anger this provokes: "Even the state police knew… Everybody knew." [81:52]
The Town’s Reaction & Legal Defense
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Community opinion is polarizing. While some cling to Pegg’s public persona, others quickly rally behind Clark as a vigilante hero.
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Clark’s lawyer (Dan Perez) offers hope for a valid defense, against a first-degree murder charge.
"I think we can have a valid defense for this... It's not going to be easy, but I don't think your life is over." — Dan Perez [87:26]
Additional Revelations
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Police discover letters in Pegg’s safe deposit box, allegedly to victims, hinting at awareness and guilt:
“Forgive me for any failings... I hope I didn’t disappoint you...” — Dennis Pegg (letters discussed) [88:10]
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The scope of Pegg's predation is estimated at "well over 100" victims, including Clark’s own brother, who later drinks himself to death—another casualty of the cycle of abuse.
"My brother... found dead on our kitchen floor... from drinking himself to death." — Clark Fedrix [90:09]
Notable Quotes & Memorable Moments
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On the nature of justice:
"You don't heal from trauma by adding more trauma. You don't heal from sexual abuse by murdering someone." — Clark Fedrix [63:02]
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On confronting the abuser:
"If they could spit on the bed they were raped in, they would want to do it." — Clark Fedrix [74:19]
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Law enforcement’s admission:
"I can't arrest somebody on rumors. I need victims, I need cold, hard facts… and I apologize to you." — Lt. Howie Ryan [81:30]
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Stephanie’s reflection:
"It almost feels therapeutic when you spit on his bed...I know you don't advocate for people to do and follow in those steps, but it just...was relief for the reader." — Stephanie Soo [74:16]
Important Timestamps
- 01:12 — Description of the crime scene by Detective Ryan
- 04:16 — Clark recalls fleeing after the murder, wounded
- 09:44 — Motive for the killing: Dennis as a “monster”
- 10:13 — Childhood heart surgery and the start of Pegg’s grooming
- 17:30 — Pegg's cruelty to sunfish; lessons in dominance
- 24:46 — Pegg’s omnipresence at school and in the community
- 33:37 — The escalation: wrestling as a transition to abuse
- 37:19 — The breaking point: sexual assault and the dog's death
- 45:54 — Seeing Pegg with a new victim at QuickCheck
- 58:53 — Decision to confront Pegg: suicide mission
- 61:41 — The murder: a struggle, then revenge and symbolism
- 72:45 — Spitting on the bed: closure or not
- 81:30 — Lt. Ryan's apology and revelations about Pegg
- 90:09 — Confirmation that Clark’s brother, too, was a victim
- 91:03 — End tease: FBI warnings, fights in prison, and further fallout (to come in Part 2)
Episode Tone & Structure
Stephanie’s approach is empathetic but unflinching, allowing Clark to narrate his trauma in his own voice. The tone is somber, reflective, and raw, with periodic moments of dark humor and absurdity—such as Clark’s mother’s outlandish efforts to help him escape, or the morbid poetics of spitting on the bed. Despite the subject matter, both Clark and Stephanie strive to emphasize the reality that vengeance is not healing, and that true justice eluded everyone for decades.
For Listeners
This episode is the first of a two-part series—ending with unanswered questions about threats to Clark’s life in prison, the FBI warning him of a hit, and yet more tragedy among Pegg’s victims. Stephanie encourages the audience to seek out Clark’s memoir, “Scarred,” for deeper context, and promises further revelations in the follow-up episode.
Trigger warning: This episode contains graphic descriptions of sexual abuse, violence, and trauma. Listener discretion is strongly advised.
End of Summary.