DNA: ID – Sarah Yarborough Part 1 of 2 (June 9, 2025)

Episode Overview

This episode of DNA: ID dives deep into the unsolved 1991 murder of 16-year-old Sarah Yarborough, a high school student from Federal Way, Washington. Focusing on the specifics of the crime, early investigative efforts, and the evolving role of forensic DNA and genetic genealogy, the narrator meticulously retraces the timeline of the day, the victimology, and the multitude of leads and investigative avenues pursued over three decades. The episode concludes with a detailed examination of the case’s intersection with cutting-edge investigative genetic genealogy, setting up part two.

Key Discussion Points & Insights

1. Discovery of the Crime and Early Investigation (01:00–10:00)

• Timeline and Discovery

  • On December 14, 1991, two boys, Adam (12) and Drew (13), skateboarding on a frigid morning at Federal Way High School, accidentally stumbled on Sarah Yarborough’s body after noticing a suspicious man walking out of the bushes ([00:45–03:00]).
  • The boys observed a girl, dressed in a drill team uniform, lying motionless in the brush and immediately ran for help.

• Crime Scene Details

  • Sarah’s body was lying on her back, eyes open; her sweater had been pushed up and pantyhose tightly wrapped around her neck.
  • Clothing items, including underwear, tights, and socks, were found nearby, neatly arranged, indicating the killer had spent time at the scene despite campus activity.
  • No evidence of rape was found, but “copious” semen was detected on Sarah’s removed clothing items ([10:00–13:00]).

• Police Response

  • The crime scene was processed meticulously: evidence was collected, photos and sketches were made, and the medical examiner on scene quickly determined death by ligature strangulation with Sarah’s own hose.
  • Sarah's drill team instructor formally identified her at around 12:45pm.

Notable Quote (Narrator, [09:41]):
"Whoever had done this was remarkably brazen or diabolical... even though it was a Saturday, there were people everywhere on the high school campus."

2. Victimology: Who Was Sarah Yarborough? (13:10–17:00)

• Background on Sarah
  • Sarah was a high-achieving, intelligent, and artistic 16-year-old, beloved by friends and family.
  • She excelled in school, was committed to ballet and the drill team, participated actively in church and youth groups, and had no known enemies.
  • Descriptions emphasize her gentle nature, naivety, and the close bond with her family.

Notable Quote (Victimology Memo, [13:58]):
"I can say without hesitation that the loss of this girl has caused this family deep pain. This crime will impact this family, especially the brothers, for years to come."

• Community Impact
  • Sarah’s death left the community in shock, especially given the parallel trauma left in the region by previous serial killers.

3. Reconstructing the Timeline and Theories (17:17–25:00)

• Family Accounts

  • Sarah’s parents were out of town for a soccer tournament and were met by police after Sarah was reported missing ([17:20–19:00]).
  • The last person to see Sarah alive was her friend Shannon, who confirmed details of their evening and established Sarah’s innocent lifestyle.

• Morning of the Crime

  • Sarah believed the drill team meeting was at 8:00am (it was actually at 9:00am), resulting in her arriving early and making her vulnerable.
  • Analysis suggests she was assaulted near her car, dragged across campus, and murdered in a secluded spot.

Notable Quote (Narrator, [19:20]):
"Strangers lurking on school grounds at 8:15am on a Saturday was thought to be very unlikely."

4. Eyewitnesses and Suspect Descriptions (25:00–34:00)

• Key Witnesses

  • Multiple witnesses, including the two boys and jogger Mustafa B., described a suspicious white male, 17–30 years old, tall, with long light brown or blonde hair in a mullet, trench coat, and acne/pockmarks.
  • Several sketches/composites were made based on largely consistent accounts.

• Sightings and Suspect Vehicle

  • A number of students and bystanders reported seeing the suspect on the morning of the murder.
  • A brown or tan Chevy Nova, possibly a suspect vehicle, was seen by multiple witnesses in the school parking lot, matching the suspect’s profile ([34:05–36:00]).

Notable Quote (Det. Doyon’s report, [28:33]):
"At least a dozen Federal Way High School students saw the individual wearing the long dart trench coat... None of them identified him as being a student at the high school."

5. The Massive Investigation: Leads, Suspects, and Frustrations (36:00–55:35)

• Scope of the Investigation

  • By the first anniversary, over 4,000 tips, 39 suspects, and hundreds of witness and suspect interviews had been conducted.
  • Suspects included fellow students, local troublemakers, and persons coincidentally matching the sketch. All were eventually cleared by DNA or alibi.
  • The focus on the tan/brown Nova waned after its owner, who was on campus for other reasons, was identified and cleared.

• Technological and Community Efforts

  • King County received a loaner computer from Weyerhaeuser to help manage the massive tip database.
  • Community efforts, including 10,000 flyers and a growing reward, kept public attention focused.
  • Sarah’s memory was honored by a scholarship fund and a memorial bench at the school.

Notable Quote (Det. Doyon, [53:58]):
"You can't change your DNA. If I never solve this case, technology will."

• Victim’s Family and Community Trauma
  • Sarah’s mother, Laura, describes the daily anguish and constant fear following the murder.

Memorable Quote (Laura Yarborough, [54:12]):
"It's really difficult... A lot of people don't realize when you lose a child by homicide, it's a full time job to recover... It's like a sword hanging over your head."

6. The Case Grows Cold: New DNA Testing, Dead Ends, and the Dawn of Genetic Genealogy (55:35–66:00)

• Continued Testing and Frustration

  • Police pursued an ongoing cycle of new suspects, polygraphs, and DNA eliminations through the 1990s and 2000s.
  • Sarah’s case became one of the earliest to benefit from a new state DNA criminal database (CODIS), but the suspect’s profile never matched any entries.

• Early Forays into Genetic Genealogy

  • In 2011, Dr. Colleen Fitzpatrick attempted Y-STR analysis, linking the suspect’s male line to the historic Fuller family of early colonial Massachusetts, associating the surname "Fuller" with the perpetrator.
  • Police investigated local Fullers, including William “Bill” Fuller, a Yarborough family friend, but were thwarted by distant relationships and negative STR matches.

Notable Quote (Dr. Fitzpatrick, [65:10]):
"The unusual situation developed that although the killer was still unknown, we had his possible last name, his genealogy back to 17th century Massachusetts... connected his family to passengers on the Mayflower..."

• Investigative Innovations
  • Multiple Fullers, sometimes resembling the sketch, were tested, but each time DNA either excluded them or indicated only distant kinship.
  • With SNP and later Parabon Nanolabs’ Snapshot DNA phenotyping, police further narrowed appearance characteristics (e.g., blue eyes, blonde hair).

7. 2010s: The Shift to Investigative Genetic Genealogy and New Hopes (66:00–End)

• Parabon Snapshot and New Investigative Leads

  • Snapshot phenotyping in 2018 provided computer-generated images and physical characteristic profiles that matched eyewitness descriptions and revitalized tips.
  • New suspects who resembled the renderings (e.g., Bober, Joseph H., John E. Fuller) were considered and DNA tested—with persistent elimination of each by genetic results.

• The Fuller Surname Search and Cul-de-sacs

  • Multiple Fullers with lazy left eyes (a possible suspect characteristic) turned up, but kinship analysis failed to make a direct identification.
  • Police repeatedly cycled through distant Fuller relatives without hitting upon the perpetrator.

Notable Quote (Detective Decker's notes, [68:20]):
"John Fuller's DNA was not a direct match to the suspect DNA, but he is likely a relative of the killer. Possibly an uncle or cousin..."

• Waiting for a Breakthrough
  • As the episode ends, the narrator points to the promise of full investigative genetic genealogy (IGG) and the case’s renewed push, setting up for the resolution in Part 2.

Memorable Quotes & Moments

• On the killer’s profile and investigation:

  "The crime of opportunity was committed by a sexual deviant and fantasist who had escalated after probably engaging in lower level crimes like peeping and exposing himself. His blitz attack on Sarah was disorganized and sloppy."
  – Narrator ([51:22])

• On investigation fatigue:

  "I'm back to square one. It was very hard to believe that with multiple witnesses seeing the suspect and having his DNA profile, the case wasn't open and shut."
  – Det. Doyon ([54:24])

• On community and family response:

  "When Sarah's high school class graduated... graduation for the class of 1993 took place on what would have been Sarah's 18th birthday. The bench was unveiled by Yarborough family friend Bill Fuller, and Sarah's brother Andrew. Inscribed on the bench is the phrase carpe diem..."
  – Narrator ([54:44])

Timestamps for Important Segments

• [00:45] – Discovery of Sarah's body
• [09:41] – Details of the crime scene and initial thoughts on the brazen nature of the crime
• [13:58] – Conclusion of official victimology
• [19:20] – Parental suspicions and the rarity of stranger-on-stranger attacks
• [28:33] – Det. Doyon on witness accounts of the suspect
• [41:20] – Use of early DNA technology and the growing case files
• [51:22] – Profiler’s theories about the killer
• [53:58] – Det. Doyon’s faith in technology to solve the case
• [65:10] – Dr. Fitzpatrick on tracing the killer’s patrilineal line
• [68:20] – Detective Decker's notes on familial matches in DNA

Episode Tone & Style

The episode blends methodical, meticulously researched narration with the somber and respectful tone appropriate to the subject matter. The podcast maintains objectivity and clarity, laying out complex forensic and investigative details in a manner accessible to the true crime audience. Firsthand accounts and police records are frequently quoted or paraphrased, drawing listeners into both the urgency and the frustration behind the decades-spanning investigation.

Summary

In this detailed, engaging episode, DNA: ID chronicles the tragic unsolved murder of Sarah Yarborough and the exhaustive efforts of law enforcement and emerging science to unmask her killer. Through vivid storytelling, interviews, and documentary records, the host reconstructs the crime, its shockwaves through a tight-knit community, and the evolving techniques of DNA analysis and genetic genealogy that would, one day, offer hope of resolution. The episode ends with the tantalizing near-breakthroughs of the 2010s and anticipation of an answer in Part 2.