Technique to Track Golden State Killer Suspect Could Find You Too

Sixty percent of Americans with European ancestry can be traced to a given DNA sample, even if they’ve never had genetic testing, scientists say.

Written byAshley Yeager
| 2 min read

Register for free to listen to this article
Listen with Speechify
0:00
2:00
Share

ABOVE: ISTOCK, JOVANMANDIC

Matching crime-scene DNA to data in a genealogy site recently helped cops nab a suspect in a decades-old murder case referred to as the Golden State Killer. Now, scientists say, the technique could be used to identify more than 60 percent of US citizens with European ancestry by a given DNA sample.

“In a few years, it’s really going to be everyone,” study coauthor Yaniv Erlich, a computational geneticist at Columbia University, tells Science.

Erlich and his colleagues were able to home in on the identity of a person from an anonymous DNA sample using only a basic characteristic about the person, such as her age, and a genetic database of 1.28 million individuals. The team winnowed the results from more than 1 million people to roughly 20 with the technique and could narrow it even further using census data and other publicly available records, according to ...

Interested in reading more?

Become a Member of

The Scientist Logo
Receive full access to more than 35 years of archives, as well as TS Digest, digital editions of The Scientist, feature stories, and much more!
Already a member? Login Here

Related Topics

Meet the Author

  • Ashley started at The Scientist in 2018. Before joining the staff, she worked as a freelance editor and writer, a writer at the Simons Foundation, and a web producer at Science News, among other positions. She holds a bachelor’s degree in journalism from the University of Tennessee, Knoxville, and a master’s degree in science writing from MIT. Ashley edits the Scientist to Watch and Profile sections of the magazine and writes news, features, and other stories for both online and print.

    View Full Profile
Share
February 2026

A Stubborn Gene, a Failed Experiment, and a New Path

When experiments refuse to cooperate, you try again and again. For Rafael Najmanovich, the setbacks ultimately pushed him in a new direction.

View this Issue
Human-Relevant In Vitro Models Enable Predictive Drug Discovery

Advancing Drug Discovery with Complex Human In Vitro Models

Stemcell Technologies
Redefining Immunology Through Advanced Technologies

Redefining Immunology Through Advanced Technologies

Ensuring Regulatory Compliance in AAV Manufacturing with Analytical Ultracentrifugation

Ensuring Regulatory Compliance in AAV Manufacturing with Analytical Ultracentrifugation

Beckman Coulter Logo
Conceptual multicolored vector image of cancer research, depicting various biomedical approaches to cancer therapy

Maximizing Cancer Research Model Systems

bioxcell

Products

Sino Biological Logo

Sino Biological Pioneers Life Sciences Innovation with High-Quality Bioreagents on Inside Business Today with Bill and Guiliana Rancic

Sino Biological Logo

Sino Biological Expands Research Reagent Portfolio to Support Global Nipah Virus Vaccine and Diagnostic Development

Beckman Coulter

Beckman Coulter Life Sciences Partners with Automata to Accelerate AI-Ready Laboratory Automation

Refeyn logo

Refeyn named in the Sunday Times 100 Tech list of the UK’s fastest-growing technology companies