Yesterday marked sixty-two years since August 5, 1962, and right on schedule, the anniversary machinery whirred to life: the retrospectives, the crypt-side flowers at Westwood Village Memorial Park, the same arguments relitigated in the same comment sections. Marilyn Monroe’s cause of death was determined six decades ago — acute barbiturate poisoning — and it has never seriously been in scientific dispute. What has never settled, not for one year of the sixty-two, is the other line on the death certificate: manner of death, “probable suicide.”
That single hedged phrase is, we’d argue, the most consequential two words ever written by the Los Angeles coroner’s office. And the anniversary is the right moment to look at why it was written that way — and why it guaranteed the debate would outlive everyone involved.
Cause of Death vs. Manner of Death: The Distinction That Explains Everything
Here’s the thing most anniversary coverage of Marilyn Monroe’s cause of death gets muddled, and it’s worth getting right because it explains the entire sixty-two-year argument.
A coroner answers two separate questions. Cause of death is the medical mechanism — what physically killed the person. For Monroe, that answer was clear from toxicology: a massive level of barbiturates, far beyond therapeutic range. Manner of death is a different kind of judgment: natural, accident, suicide, homicide, or undetermined. It’s a classification of circumstances, not chemistry — and circumstances require interpretation.
Cause was science. Manner was inference. And the office knew the difference, which is precisely why Chief Coroner Theodore Curphey did something unusual: he qualified it. Not “suicide.” Probable suicide.
The Psychological Autopsy: A First of Its Kind
Curphey didn’t reach that word alone. Facing the most scrutinized death investigation in the office’s history, he brought in a team from the Los Angeles Suicide Prevention Center — including psychologists Norman Farberow and Robert Litman — to conduct what was then a novel procedure: a “psychological autopsy.” The team interviewed people around Monroe and reviewed her psychiatric history, her prior overdoses, and her state of mind in her final months, then advised the coroner on classification.
It was a genuinely pioneering idea — the notion that manner of death could be investigated with the same rigor as cause — and the technique entered the forensic toolkit afterward. But it had a built-in vulnerability the office couldn’t fix: a psychological autopsy is only as good as the candor of the witnesses, and several people in Monroe’s orbit gave accounts that shifted over the years. Deputy Medical Examiner Thomas Noguchi’s physical autopsy was meticulous and is a public record; the psychological inquiry around it rested on human memory and human motives. Skeptics noticed.
1982: The District Attorney Looks Again
Doubt didn’t stay in the tabloids. Two decades later, persistent allegations prompted the Los Angeles County District Attorney’s office to conduct a formal threshold review of the case in 1982, re-examining the files and re-interviewing available witnesses to determine whether a criminal investigation should be opened. As the Los Angeles Times reported at the time, the review concluded there was no credible evidence of homicide — while candidly acknowledging the documentation gaps and witness inconsistencies that had fed suspicion in the first place.
Read today, the 1982 review is the most underrated document in the whole saga. It is sober, public, and unsparing about the original investigation’s imperfections, and it still landed on the same side as Curphey’s office. For people persuadable by records, it was persuasive. For everyone else, an inquiry that found no conspiracy simply became part of the conspiracy.
Why Anniversaries Reignite the Debate
There’s a rhythm to this case, and if you’ve followed it long enough you can set a calendar by it. The 60th anniversary in 2022 brought a Netflix documentary built on archival interview tapes and a divisive Oscar-bait fictionalization within months of each other, and each new wave introduces the “probable” to a new generation — usually stripped of the context above. We’ve written before about how anniversary coverage shapes the memory of LA’s most famous cases; Monroe’s is the purest example, because the anniversary isn’t revisiting an unsolved crime. It’s revisiting an unresolved word.
And the public has voted with its feet for decades. Monroe’s crypt is among the most visited graves in Los Angeles, and back when the coroner’s office ran its famous Skeletons in the Closet gift shop on Mission Road, the office’s connection to her case was a foundational piece of its strange celebrity. The Los Angeles County Medical Examiner is a working public agency, but it is also, involuntarily, the custodian of American myth — and no file in its history carries more myth than this one.
The Honest Conclusion
So where does that leave us at sixty-two years? Roughly here: the toxicology has never been credibly challenged. The “probable suicide” classification was reached through an innovative, documented process, and it survived a formal prosecutorial re-examination twenty years later. That is a strong record.
It is also true that the original investigation had real flaws, that witness accounts shifted, and that “probable” is the office’s own admission that certainty was unavailable. Curphey’s hedge was scientifically honest — and rhetorically fatal. A public that wanted an answer got an asterisk, and sixty-two years of argument grew in the gap.
That’s the anniversary lesson, and it goes beyond one actress: in death investigation, the most honest word on a certificate can be the one the public never forgives.
Frequently Asked Questions
What was Marilyn Monroe’s official cause of death?
Acute barbiturate poisoning. The 1962 toxicology found lethal levels of sedatives in her system, and the medical cause of death has never been credibly disputed.
Why was the death ruled “probable suicide” instead of suicide?
Manner of death is a judgment about circumstances, not chemistry. The coroner, advised by a pioneering “psychological autopsy” team, concluded suicide was the most likely manner but could not exclude all alternatives — so the classification was deliberately qualified.
Was Marilyn Monroe’s death ever reinvestigated?
Yes. In 1982 the Los Angeles County District Attorney’s office conducted a formal threshold review of the case and concluded there was no credible evidence of homicide, while acknowledging flaws in the original 1962 investigation.
What is a psychological autopsy?
A structured investigation of a decedent’s mental state — interviews, psychiatric history, and behavioral evidence — used to help classify manner of death. The Monroe case in 1962 was one of its first high-profile uses.
