O.J. Simpson died last week, on April 10, at age 76 — his family announced the news the following day, saying he had been battling cancer. The obituaries have spent the days since wrestling with how to summarize a life that bent American culture around itself. That is not this site’s job. Our beat is death investigation in Los Angeles, and on that beat, the O.J. Simpson forensic evidence — the DNA, the autopsy testimony, the chain-of-custody battles of 1994 and 1995 — is one of the most consequential stories ever to pass through the LA County coroner’s office.

Because here is the thing that’s easy to forget thirty years on: before that trial, almost nobody in America could tell you what DNA evidence was. After it, everybody could. The criminal trial of People v. Simpson was, among everything else it was, the largest forensic science classroom ever convened. Tens of millions of people got a daily education in serology, DNA typing, autopsy interpretation, and evidence handling — and the lessons, good and bad, permanently changed how this country thinks about physical evidence.

Two people were at the center of that evidence, and they should be named before anything else: Nicole Brown Simpson and Ronald Goldman, killed on June 12, 1994, outside Nicole’s home on South Bundy Drive in Brentwood. Everything that follows — the science, the testimony, the cultural aftermath — exists because two real people were murdered, and their families have lived with that for thirty years. A jury acquitted Simpson of the murders in 1995; a civil jury later found him liable for the deaths in 1997. Those are the legal facts, and they frame everything below.

The Coroner’s Office on the Stand

The Los Angeles County coroner’s office — the same institution whose long, strange public history this site chronicles — found itself under a microscope unlike anything in its history, with the possible exception of its most famous unsolved case from 1947.

The autopsies of Nicole Brown Simpson and Ronald Goldman were performed by a deputy medical examiner, Dr. Irwin Golden, and the defense made his work an early target — probing delays in the coroner’s response to the scene and errors in the examinations. What happened next became one of the trial’s defining forensic moments: the chief medical examiner, Dr. Lakshmanan Sathyavagiswaran, took the stand himself and testified for days, walking the jury through the autopsy findings wound by wound, acknowledging the office’s mistakes openly while defending the core conclusions about how the victims died.

It was an extraordinary spectacle — the head of the nation’s busiest medical examiner’s office conducting what amounted to a graduate seminar in forensic pathology on live national television. For many Americans, it was the first time they understood what an autopsy actually establishes: not just cause of death, but sequence, position, timing, the story the body tells. It remains some of the most detailed forensic testimony ever delivered in an American courtroom.

DNA Goes Prime Time

The blood evidence was the heart of the prosecution’s case: drops at the Bundy scene, evidence in the Bronco, the Rockingham glove, socks in Simpson’s bedroom. Prosecutors presented DNA test results — both RFLP and PCR typing, the technologies of the era — linking Simpson to the scene with statistical match probabilities running into the billions.

And so, night after night, America learned the vocabulary: alleles, loci, match probability, degradation, contamination. The FBI had only begun DNA casework in the late 1980s; in 1994 the science was barely a half-decade into American courtrooms. The Simpson trial put it on prime-time television for the better part of a year.

The defense’s response was equally educational, in its way. Barry Scheck and the defense team did not primarily attack the science of DNA — they attacked everything that happened to the samples before the science: collection, handling, storage, documentation. The cross-examinations of LAPD criminalists over evidence handling became legendary, and “chain of custody” entered the American household vocabulary. The argument was simple and devastating: the finest laboratory analysis in the world means nothing if the sample’s journey from crime scene to lab bench cannot be trusted.

The Lessons That Outlived the Verdict

Whatever one thinks of the verdict, the forensic aftermath of the Simpson trial was real and largely constructive:

  • Crime lab reform. The trial’s exposure of evidence-handling failures pushed the LAPD and agencies nationwide to professionalize crime scene processing — better training, better documentation, eventually new laboratory facilities and accreditation standards.
  • DNA’s paradoxical victory. The trial that featured DNA evidence failing to convict ultimately accelerated DNA’s acceptance. The defense never claimed the science was junk — only that the samples were mishandled. That concession, made at maximum volume, helped cement DNA as the gold standard. Research arms of the U.S. Department of Justice spent the following decades building out national DNA infrastructure, standards, and the offender databases that now solve cold cases routinely.
  • The exoneration movement. Scheck and Peter Neufeld, the trial’s DNA specialists, were already running the Innocence Project, using the same science to free the wrongfully convicted. The trial made them — and the idea that DNA could correct justice as well as deliver it — famous.
  • Forensic literacy, for better and worse. The public that watched the Simpson trial became the audience for the forensic-television boom that followed, and eventually for the modern true-crime era. Jurors now arrive expecting DNA in every case — a phenomenon prosecutors have grappled with ever since.

A Strange Inheritance

The Los Angeles Times, which covered the 1994–95 trial as exhaustively as any story in its history, has spent the past week assessing Simpson’s complicated legacy. Ours is narrower. From where this site sits, the trial’s inheritance is this: it dragged death investigation — autopsy practice, toxicology, evidence handling, the unglamorous procedural machinery of the coroner’s world — into the center of American public life and left it there permanently.

Every plain-English explainer of a medical examiner’s findings written today, including the ones we publish here, is written for an audience the Simpson trial created: a public that knows these documents exist, knows they can be read, and wants to understand them. Thirty years later, that may be the trial’s most durable legacy — and it’s worth remembering, as the obituaries run, that the education came at the cost of two lives. Nicole Brown Simpson and Ronald Goldman deserve to be remembered first.

Frequently Asked Questions

What forensic evidence was central to the O.J. Simpson trial?

DNA analysis of blood evidence from the Bundy Drive crime scene, Simpson’s Ford Bronco, and his Rockingham estate, along with autopsy findings, hair and fiber analysis, and the famous gloves. The DNA results, using the RFLP and PCR methods of the mid-1990s, anchored the prosecution’s case.

What role did the LA County coroner play in the Simpson case?

Deputy medical examiner Dr. Irwin Golden performed the autopsies of Nicole Brown Simpson and Ronald Goldman, and chief medical examiner Dr. Lakshmanan Sathyavagiswaran later delivered days of detailed trial testimony explaining the findings and addressing errors the defense had raised.

How did the Simpson trial change forensic science?

It exposed weaknesses in crime scene evidence handling, spurring crime lab reform and professionalization nationwide, while simultaneously cementing DNA analysis as the gold standard of forensic identification and making “chain of custody” a household phrase.

When did O.J. Simpson die?

Simpson died on April 10, 2024, at age 76. His family announced his death on April 11, saying he had been battling cancer. He had been acquitted of the 1994 murders in criminal court and found liable for the deaths in a 1997 civil judgment.