Video summary

He Fooled EVERYONE. Then DNA Revealed His SICK Secret.

Main summary

Key takeaways

News and Commentary

Overview

The video recounts a true-crime case that remained unsolved for years—then was cracked through DNA testing in an unexpected way, ultimately revealing that a woman’s trusted household companion had attacked her.

The Attack and Investigation (2013)

  • Aug. 31, 2013: A Fort Collins, Colorado police officer, Dne Stratton, responds to 911 calls about a screaming woman in a poorly lit park (Cottonwood Glenn).
  • He finds Amber Smith (20), who is:
    • severely beaten and blood-covered
    • strangled (neck marks indicate a ligature/rope)
    • sexually assaulted
    • bound with red duct tape, including tape used to cover/bind her head/face and restrain her hands/feet
    • left for dead but surviving despite life-threatening injuries (including a brain bleed and a broken jaw)
  • The case is assigned to detective Siobhan Seymour.
  • Amber is a single mother to a 3-year-old son, Gabriel, who is safe that night (staying with Amber’s best friend).

Amber’s Account and Early Suspect Theories

  • Amber reports that before the assault, she and a friend (Eric Vanagunas) had been drinking at Rosboro Park.
  • She later blacks out and wakes bound and attacked.
  • During interviews, Seymour becomes suspicious of Eric, especially because:
    • Amber is found at Cottonwood Glenn, but the drinking location was Rosboro Park (about 1.5 miles away)
    • Eric claims he tried to wake Amber after she passed out, then left her—later checking briefly, which Seymour views as implausible.

DNA Testing—But No Matches (2013–2015)

Authorities obtain a full male DNA profile from:

  • the sexual assault kit (semen)
  • injury swabs
  • recovered red duct tape

Key results:

  • The DNA matches across all evidence to the same perpetrator.
  • Eric is excluded.
  • The offender profile produces no hits in CODIS/state databases.

With few leads, the investigation stalls and the case is eventually closed after two years, leaving Amber traumatized and without answers.

A Break in 2017: Bicycle Theft Leads to the DNA Match

  • Aug. 2017 (nearly four years later): Seymour is called during family time at Cougar Canyon.
  • The CBI informs her that DNA from Amber’s duct tape case matches a suspect and that they have a name.

The chain of events:

  • In July 2017, police arrested Stefan Moon (36) for bicycle theft after the stolen bike was sold at a pawn shop (camera evidence).
  • Under Colorado law, the suspect in a felony pawn-related case had to provide a DNA sample.
  • That DNA matches Amber’s previously unknown perpetrator profile.
  • Further testing confirms Moon’s DNA is on:
    • Amber’s body
    • both sides of the duct tape

This ties him directly to the 2013 assault.

The Most Shocking Revelation: Amber Lived With Her Attacker

Seymour tracks down Moon’s parents (Brian and Susie Moon) and then contacts Amber.

Amber initially rejects the identification—until the twist becomes clear:

  • The supportive roommate “Sam” who helped her after 2015 had been Stefan Moon all along.
  • Moon’s real name was Stefan.
  • He had been around Amber and her son during the years Amber was rebuilding her life.

The video emphasizes the psychological horror of betrayal: Amber trusted and confided in the person later proven to have attacked her.

Phone Call and Inconsistent Explanations

Seymour asks Amber to call Moon while investigators have DNA evidence.

Moon initially denies involvement and offers shifting explanations, including:

  • a consensual-adult-services/Craigslist claim tying the encounter to Rosboro Park
  • later, a story that another person (Bryce Bailey) kidnapped and assaulted Amber while Moon watched in fear

Investigators note that the DNA evidence also appears across:

  • Amber’s body swabs
  • duct tape swabs/scratches

These findings undermine Moon’s changing narrative.

Charges, Trial, and Verdict (2019)

Charges

Moon is charged with multiple offenses including:

  • first-degree attempted murder
  • second-degree kidnapping
  • sexual assault
  • first-degree assault

Bryce Bailey is questioned, but his DNA does not match the evidence.

Trial (Summer 2019)

  • The defense continues the Craigslist-based narrative.
  • Amber’s testimony and the DNA evidence support the prosecution’s case.

Verdict

  • The verdict is mixed:
    • Moon is convicted of multiple charges
    • he is acquitted of attempted first-degree murder (surprising to the courtroom)

Sentencing (Oct. 2019)

At sentencing, Amber tells the court she will never be Moon’s victim again. The judge imposes the maximum sentence: 128 years to life.

Commentary / Closing Points From the Video

  • The story is framed as uniquely disturbing because Moon “didn’t look like” a predator based on his apparent prior life/offense record.
  • The video stresses that the attack involved opportunity and concealment, not a known violent history that would have flagged him to Amber.
  • It highlights the long emotional toll on multiple people:
    • Amber’s trauma and isolation
    • Seymour’s years-long pressure and uncertainty
    • Stratton’s lingering nightmares
  • The video also notes that Amber later pursued addiction counseling certification, with support arranged through a GoFundMe, and that both Amber and Gabriel were reportedly doing well.

Presenters / Contributors

  • Nigel (host)
  • Luke (co-host / channel friend)
  • Detective Siobhan Seymour
  • Officer Dne Stratton
  • Amber Smith
  • Stefan (Stefan Moon)
  • Brian Moon (Stefan’s father)
  • Susie Moon (Stefan’s mother)
  • Eric Vanagunas
  • Bryce Bailey
  • Gabriel Smith (Amber’s son; described as safe)

Original video