INVESTIGATIVE CASE DOSSIER: THE 1963 MURDER OF MARGARET ‘PEGGY’ BECK: HOW GENETIC GENEALOGY SOLVED COLORADO’S OLDEST COLD CASE
- Victim: Margaret ‘Peggy’ Beck (Age 16; Girl Scout Camp Counselor)
- Date of Crime: August 18, 1963 (Flying G Ranch Camp near Deckers, CO)
- Perpetrator: James Raymond Taylor (Born 1939; Convicted Felon)
- Cause of Death: Strangulation following sexual assault
- Breakthrough Method: Forensic Genetic Genealogy (United Data Connect & CeCe Moore)
- Date of Warrant Issued: April 2020 (Jefferson County, Colorado)
- Status: First-degree murder arrest warrant issued; Suspect presumed deceased
On the morning of August 18, 1963, 16-year-old Girl Scout camp counselor Margaret ‘Peggy’ Beck was found suffocated inside her platform tent at the Flying G Ranch near Deckers, Colorado. For fifty-seven years, the homicide remained Colorado’s oldest and most baffling cold case. In April 2020, Jefferson County Sheriff’s Office and United Data Connect utilized forensic genetic genealogy to identify 23-year-old local resident James Raymond Taylor, issuing a historic first-degree murder warrant fifty-seven years after the crime.
The 1963 Flying G Ranch Homicide
Peggy Beck was sleeping alone in a platform tent at the remote Flying G Ranch when an intruder entered during the night. Autopsy findings confirmed she had been sexually assaulted and strangled with her scarf. Biological evidence was recovered from her sleeping bag and preserved for over five decades.
The Genetic Genealogy Breakthrough
In 2019, Jefferson County investigators partnered with United Data Connect. Genealogists constructed ancestral family trees on GEDmatch, identifying James Raymond Taylor, who had lived in the Deckers area in 1963 and had a history of violent sex offenses.
Historic Murder Warrant
In April 2020, Jefferson County prosecutors filed formal first-degree murder charges against Taylor. The resolution of the Peggy Beck case stands as one of the oldest cold case homicides ever solved by genetic genealogy.
Case Timeline & Key Forensic Milestones
| Date / Year | Milestone / Event | Forensic Significance |
|---|---|---|
| Aug 18, 1963 | Peggy Beck murdered at Flying G Ranch, CO | Evidence preserved in cold storage |
| 2007 | STR DNA profile extracted from sleeping bag | No CODIS database match found |
| April 2020 | Genetic genealogy identifies James Raymond Taylor | First-degree murder warrant issued after 57 years |
Frequently Asked Questions (FAQ)
Who was identified as Peggy Beck’s killer?
James Raymond Taylor, who was 23 years old and living near the camp in 1963, was identified through genetic genealogy in 2020.
How old was the Peggy Beck case when it was solved?
The case was 57 years old when solved in 2020, making it one of the oldest cold case murders ever resolved through forensic DNA.
