INVESTIGATIVE CASE DOSSIER: THE 1974 FORT WORTH COLD CASES: HOW DNA LINKED DONALD PEREA TO MURDERS OF PATRICIA BEARD & FRANCINE FROST
- Victims: Patricia Beard (Age 19) & Francine Frost (Age 26)
- Date of Crimes: 1974 (Fort Worth, Tarrant County, Texas)
- Perpetrator: Donald Gene Perea (Born 1952; Died 1981)
- Cause of Death: Strangulation following abduction and sexual assault
- Breakthrough Method: CODIS STR DNA matching from preserved evidence
- Date of Resolution: 2021 (Publicly cleared by Fort Worth Police)
- Status: Perpetrator deceased in 1981; Cases officially cleared by exception
In 1974, the city of Fort Worth, Texas was gripped by terror as multiple young women were abducted and murdered, including 19-year-old Patricia Beard and 26-year-old nurse Francine Frost. For nearly five decades, both homicides remained open cold cases. In 2021, Fort Worth Police Cold Case detectives utilized advanced STR DNA technology to analyze biological samples preserved from both crime scenes, proving that convicted predator Donald Gene Perea was the serial killer responsible.
The 1974 Fort Worth Murders
In March 1974, Patricia Beard was found strangled inside her apartment near Texas Christian University. Months later, Francine Frost vanished from a supermarket parking lot, and her remains were discovered in an open field. Physical evidence was recovered from both scenes and preserved by Tarrant County medical examiners.


The Forensic DNA Breakthrough
In 2020, Fort Worth Police Cold Case Detective Paul Vega submitted the evidence to the University of North Texas Center for Human Identification. Scientists developed a complete STR DNA profile, which matched Donald Gene Perea, a man with prior sexual assault convictions who died of health complications in 1981.

Closure for Two Families
The DNA confirmation officially closed two of Fort Worth’s longest-standing cold cases, bringing closure to the Beard and Frost families after 47 years.

Case Timeline & Key Forensic Milestones
| Date / Year | Milestone / Event | Forensic Significance |
|---|---|---|
| 1974 | Patricia Beard and Francine Frost murdered in Fort Worth, TX | Evidence preserved in cold storage |
| 2020–2021 | UNT Center for Human Identification analyzes STR DNA | Matches Donald Gene Perea |
| 2021 | Fort Worth Police announce official clearance | 47-year cold cases resolved |
Frequently Asked Questions (FAQ)
Who was Donald Perea?
Donald Gene Perea was a Fort Worth resident with a history of violent sex crimes who was identified in 2021 as the killer of Patricia Beard and Francine Frost.
How were the 1974 Fort Worth murders solved?
DNA extracted from preserved autopsy evidence was processed using modern STR profiling, matching Perea’s genetic profile in state databases.



