
Collaboration Leads to a Breakthrough in a Case That’s Close to Home
After over 30 years, breakthroughs in forensic science have led investigators to identify a person of interest in the 1991 murders of four young Austin-area girls; Eliza Thomas, Amy Ayers, and sisters Jennifer Harbison and Sarah Harbison. Announced at a media briefing held by the City of Austin on September 29, this development in the “Yogurt Shop Murders” case represents the outcome of years of tireless commitment, open communication, and coordinated efforts across the forensic and law enforcement communities.
As members of the Austin community, headquartered just a mile from the site of this horrific crime, Signature Science was honored to contribute DNA testing in this investigation – joining the many laboratories and agencies who united to help bring answers in this long-unsolved crime.
All of us at Signature Science extend our profound sentiments of sympathy and support to the families of the four girls whose lives were tragically taken. We are grateful to the Austin Forensic Science Department, Austin Police Department, and the Cold Case and Missing Persons Unit within the Texas Attorney General’s Office for their dedication and persistence in solving this case.

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