Precision & Instinct

Simone Valdez and Eli Marchetti

Every case has a body, a mystery, and no confession. Precision and Instinct is a true crime debate show built around two hosts who never agree. Eli Marchetti argues the hard evidence — what can actually be proven. Simone Valdez argues the pattern — what the evidence is too careful to say out loud. There is no narrator telling you what to think, and no tidy resolution. Just two sides of every case, argued out in full, and you decide who is right. Each episode takes on a real, unresolved case — from an unidentified man found dead on an Australian beach with a coded poem in his pocket, to the real exorcism that inspired a horror classic, to the oldest unsolved murder in Los Angeles history. Every case gets the same treatment: hard evidence versus pattern and instinct, argued out completely, no verdict handed to you. The case files. Every episode has a companion page at precisionandinstinct.com with the full case in writing and the source list behind it, where every claim is marked confirmed, disputed, or single-source. Listen first, then check our work. https://rss.com/podcasts/precision-instinct/voicemail/ New episodes weekly. SIMONE VALDEZ grew up two blocks from the water in Santa Barbara, in a family of storytellers who trusted their gut long before they trusted the news. Her grandmother read coffee grounds; her mother ran a small business on instinct alone and never once went under. Simone inherited both the skepticism of outsiders and the conviction that some truths show up in a room before they show up on paper. She spent her twenties as a behavioral researcher, then a private investigator's assistant, chasing the parts of a case that never made it into the official report — the pause before an answer, the detail nobody thought to ask about. She has an unshakeable belief that people tell you who they are, if you're willing to actually watch. Precision and Instinct lets her finally say out loud what she's been thinking the whole time. ELI MARCHETTI was raised in a house where dinner conversations doubled as cross-examinations. The son of a Cook County paralegal and a high school chemistry teacher, he spent his childhood summers on the South Side of Chicago, where he learned early that a good story and a true one are rarely the same thing. He studied journalism before switching, halfway through, to statistics — a decision his mother still brings up. Before turning his attention to cold cases and unsolved mysteries, Eli spent the better part of a decade fact-checking for a Midwest newsroom, where he developed a reputation for being the last person in the building willing to sign off on a headline. He now lives by one rule: if it can't be documented, it isn't true yet — it's just a good guess wearing a suit. Precision and Instinct is his first venture into audio, though friends say he's been cross-examining people for free his whole life. The hosts are fictional characters created by Verb Editorial, with AI-generated voices designed specifically for each one. Each episode is researched and written with AI assistance, then fact-checked, edited, and produced by a human team.

P & I AD-FREE

Uninterrupted listening from all our shows

$2.99/mo or $29.99/yr after trial

  1. 1d ago

    The Circleville Letters: Mystery, Threats, and Obsession in a Small Ohio Town

    Hey! We would love to hear your thoughts, send us a voice note. At about 3:30 on a winter afternoon in February 1983, a school bus driver named Mary Gillispie pulled over at a crossroads outside Circleville, Ohio. Someone had posted a hand-lettered sign on her route, aimed at her daughter, and she climbed down to tear it off. Behind it was a box holding a loaded pistol, rigged to fire. By then Mary had spent six years as the first target of an anonymous letter writer. The letters went on to reach hundreds of people across town. Her husband Ron had died on a country road in 1977, the night he said he was going to confront the writer. The trap gun was traced to her brother-in-law, Paul Freshour, and he went to prison for attempted murder. Then the letters kept coming, for the whole decade he was locked up, and they stopped around the year he was paroled. Freshour was never charged with writing a single one, and he denied it until he died. In 2021 a forensic document examiner and a former FBI profiler went through the same letters and came to opposite conclusions. This week Eli follows the handwriting: a capital G shaped like a six, a zip-code habit, and a gun that was his. Simone follows the person: a profile that doesn't fit him, a trial built on a copied handwriting sample, and ten years of letters from a man who shouldn't have been able to send them. Want to see for yourself? The case file has the full story in writing, and the source list shows which claims are confirmed, which are disputed, and which rest on a single account. Case file: https://precisionandinstinct.com/cases/circleville-letters/ Source list: https://notes.precisionandinstinct.com/episodes/17-the-circleville-letters.html Leave us your questions and comments: https://rss.com/podcasts/precision-instinct/voicemail/ CONTENT NOTE: This episode covers a real anonymous-letter campaign, a death officially ruled accidental, and an attempted-murder conviction. Mary Gillispie and Gordon Massie are private individuals. The affair the letters accused them of has never been shown to be true, and this episode treats it only as the letters' accusation. Paul Freshour, Karen Sue Freshour and their son Mark have all died. Karen Sue's testimony and the couple's divorce are presented as context only, with no suggestion of bad faith. Mark's death is mentioned briefly and without detail. Mary's daughter, who was a minor in 1983, is not named, and the wording of the sign is not repeated. Claims that later anonymous letters made about local officials are attributed to the letters only. No one beyond Paul Freshour is named or suggested as a suspect. As with every case on this show, Precision and Instinct does not resolve who wrote the letters. The episode closes with authorship still officially unresolved and both hosts' reads intact. The hosts are fictional characters created by Verb Editorial, with AI-generated voices designed specifically for each one. Each episode is researched and written with AI assistance, then fact-checked, edited, and produced by a human team.

    The Circleville Letters: Mystery, Threats, and Obsession in a Small Ohio Town
  2. Oct 25

    The Disappearance of Jimmy Hoffa

    Hey! We would love to hear your thoughts, send us a voice note. At 2:41 in the afternoon on July 30th, 1975, a man in a windbreaker who'd already used the payphone twice shook a stranger's hand through a car window in a suburban Detroit parking lot, got into the back seat, and was never seen again by anyone who wasn't in that car. James Riddle Hoffa — the most powerful union boss in America, a man who tracked his own schedule in his own handwriting down to the restaurant and the hour — vanished so completely that fifty-one years of sworn testimony, an FBI memo, a matched hair, and five separate failed digs for his body have never added up to a single indictment. The version most people actually know is Frank Sheeran's deathbed confession, dramatized in Scorsese's "The Irishman" — and independent reporters and legal scholars have been picking it apart since the movie made it the default story. The case the FBI actually built is a different one, and in some ways a stronger one, and it's never cleared a courtroom either. This week, Eli argues the sworn record holds up better than this case's reputation for chaos suggests. Simone argues that confidence has outrun proof in this case for fifty years — and that the record Eli's citing rests on exactly the kind of overconfident insider certainty that's been wrong here before. Want to see for yourself? The case file has the full story in writing, and the source list shows which claims are confirmed, which are disputed, and which rest on a single account. Case file: https://precisionandinstinct.com/cases/jimmy-hoffa-disappearance/ Source list: https://notes.precisionandinstinct.com/episodes/16-the-disappearance-of-jimmy-hoffa.html Leave us your questions and comments: https://rss.com/podcasts/precision-instinct/voicemail/ CONTENT NOTE: This episode covers a real, unsolved 1975 disappearance that the FBI still describes as an open investigation. Every person ever named in connection with Hoffa's death — Anthony Provenzano, Anthony Giacalone, Salvatore Briguglio, Chuckie O'Brien, and Frank Sheeran — is deceased; Gabriel Briguglio, the last of the three men named in the 1975 sworn testimony, died in November 2025 still denying involvement, and no living person is named as a suspect anywhere in this episode. James P. Hoffa and Barbara Ann Crancer, Hoffa's son and daughter, are living private citizens currently and publicly petitioning the FBI; their July 2026 letter to the Bureau is presented factually, without dramatizing their private grief or putting words in their mouths. That petition was addressed to the sitting FBI Director; this episode states the 2025–2026 records-release activity as a reported fact only and does not editorialize on the administration's motives in either direction. As with every case on this show, Precision and Instinct does not resolve who was responsible — the episode closes with the investigation still open and both hosts' reads intact. The hosts are fictional characters created by Verb Editorial, with AI-generated voices designed specifically for each one. Each episode is researched and written with AI assistance, then fact-checked, edited, and produced by a human team.

    The Disappearance of Jimmy Hoffa
  3. Oct 18

    The Chicago Tylenol Murders

    Hey! We would love to hear your thoughts, send us a voice note. In the span of four days in September 1982, seven people across the Chicago suburbs — a twelve-year-old with a sore throat, a postal worker, and the two family members who gathered at his house to grieve him, among others — took an ordinary Extra-Strength Tylenol capsule from a bottle that looked exactly like the one in anyone's medicine cabinet, and never woke up again. It took a public health nurse counting missing capsules out loud in a grieving family's kitchen, and a medical examiner's investigator willing to lean over a pill bottle and smell it, to even figure out what had happened: someone had opened bottles on store shelves across the city, laced the capsules with cyanide at nearly triple the lethal dose, and put them back — with no connection to a single victim. The case named one man, James Lewis, who mailed Johnson & Johnson a million-dollar extortion letter days later containing operational detail about the tampering that had never been made public — and was convicted only of that extortion, never of the murders. He died in 2023, mid-documentary, still saying he didn't do it. This week, Eli and Simone dig into a case that reshaped how an entire country buys medicine and still has no answer to the one question it was actually about. Want to see for yourself? The case file has the full story in writing, and the source list shows which claims are confirmed, which are disputed, and which rest on a single account. Case file: https://precisionandinstinct.com/cases/chicago-tylenol-murders/ Source list: https://notes.precisionandinstinct.com/episodes/15-the-chicago-tylenol-murders.html Leave us your questions and comments: https://rss.com/podcasts/precision-instinct/voicemail/ CONTENT NOTE: This episode covers a real, unsolved 1982 mass-poisoning case with seven named victims; several of their relatives appeared on-camera in the 2025 Netflix documentary covering this case and are treated with the same care this show gives other cases with living family participants. LeAnn Lewis, James Lewis's wife, is named only as a factual anchor (a traced bank account, assumed names, her own documented aliases) and is never characterized or implicated beyond what's sourced — she was investigated and cleared. Roger Arnold, a second person investigators looked at hard and never charged in this case, is named consistent with this show's established pattern on uncharged-suspect naming; he died in 2008 and two rounds of DNA testing never connected him to the poisonings. James Lewis, the case's central suspect, was convicted only of extortion, never murder, and died in 2023 still maintaining his innocence — this episode does not resolve whether he was responsible, and the murders remain an officially open investigation to this day. The hosts are fictional characters created by Verb Editorial, with AI-generated voices designed specifically for each one. Each episode is researched and written with AI assistance, then fact-checked, edited, and produced by a human team.

    The Chicago Tylenol Murders
  4. Oct 11

    The Hall-Mills Murders: Jersey’s Original True Crime Circus

    Hey! We would love to hear your thoughts, send us a voice note. On a September night in 1922, a small-town minister and a choir singer he'd been having an affair with were shot dead and laid out side by side under a crab apple tree in a New Jersey lovers' lane — his hat over his face, her scarf around her throat, torn love letters scattered between them, and his own calling card propped at his feet like a signature. The crime scene was never secured: within days it was pulling an estimated thousand cars a day, with vendors selling balloons and twenty-five-cent bags of dirt scooped from under the tree until souvenir hunters had stripped the bark off it. Four years, a missing grand jury file, and a witness testifying from a hospital bed later, the reverend's widow and her two brothers stood trial in the biggest media circus American journalism had seen before Lindbergh — and walked out acquitted. This week, Eli makes the case that the acquittal was the only honest verdict a badly-compromised, circumstantial case could produce. Simone isn't ready to let a filed-down pistol, a changed story, and a family with the money to buy the best defense in the state off the hook that easily. Want to see for yourself? The case file has the full story in writing, and the source list shows which claims are confirmed, which are disputed, and which rest on a single account. Case file: https://precisionandinstinct.com/cases/hall-mills-murders/ Source list: https://notes.precisionandinstinct.com/episodes/14-the-hall-mills-murders.html Leave us your questions and comments: https://rss.com/podcasts/precision-instinct/voicemail/ CONTENT NOTE: This episode covers a real, unsolved 1922 double homicide and the 1926 trial of four named historical defendants — Frances Hall, Henry Stevens, Willie Stevens, and Henry Carpender — all of whom were acquitted or never brought to trial and were never legally found guilty of anything. All named principals in this case, including both victims and the prosecution's central witness, died between 1930 and 1992; there are no living subjects and no sensitivity sign-off gate on this case. Standard care applies throughout to any language implying guilt, since the jury's verdict stands and has never been overturned — the episode itself argues both sides without resolving which one is right. The hosts are fictional characters created by Verb Editorial, with AI-generated voices designed specifically for each one. Each episode is researched and written with AI assistance, then fact-checked, edited, and produced by a human team.

    The Hall-Mills Murders: Jersey’s Original True Crime Circus
  5. Oct 4

    The Mad Gasser of Mattoon

    Hey! We would love to hear your thoughts, send us a voice note. In September 1944, in the small Illinois railroad town of Mattoon, a woman named Beulah Cordes picked up a cloth left on her own front porch — and within seconds her lips were swelling and her mouth and throat were burning, with a skeleton key and a lipstick tube, neither hers, sitting beside it. Over the next two weeks, dozens of residents reported a mysterious "gas maniac" breaking into homes at night to leave people gassed and paralyzed, drawing in the Illinois State Police and the FBI, before the panic collapsed within days of the police chief publicly doubting it — and no suspect was ever arrested or charged. This week, Eli and Simone dig into a case the town's own public health commissioner couldn't fully settle in real time: whether this is one of history's clearest documented cases of mass hysteria, or whether one badly-explained porch means something in Mattoon actually happened. Want to see for yourself? The case file has the full story in writing, and the source list shows which claims are confirmed, which are disputed, and which rest on a single account. Case file: https://precisionandinstinct.com/cases/mad-gasser-of-mattoon/ Source list: https://notes.precisionandinstinct.com/episodes/13-the-mad-gasser-of-mattoon.html Leave us your questions and comments: https://rss.com/podcasts/precision-instinct/voicemail/ CONTENT NOTE: This episode discusses a wartime panic involving documented chemical injury to a real, named private individual (Beulah Cordes) and references to wartime loss (a household member killed at Normandy) as historical context, not as a focus of grief or tragedy narration. One contested historical candidate (Farley Llewellyn) is named once, sourced to a single self-published book flagged as unreliable by Wikipedia's own editors; no motive, personal life, or biographical detail about him is discussed. No suspect was ever arrested or charged in this case, and it remains officially unresolved. The hosts are fictional characters created by Verb Editorial, with AI-generated voices designed specifically for each one. Each episode is researched and written with AI assistance, then fact-checked, edited, and produced by a human team.

    The Mad Gasser of Mattoon
  6. Sep 27

    Spy in a Bag: The Death of Gareth Williams

    Hey! We would love to hear your thoughts, send us a voice note. In August 2010, a 31-year-old GCHQ mathematician on secondment to MI6 vanished for over a week without anyone at his own intelligence agency raising an alarm. When police finally checked his Pimlico flat, they found him dead inside a padlocked holdall bag in the bathtub. What followed was a 2012 coroner's inquest that found it "likely" he was unlawfully killed — and a 2013 Metropolitan Police reversal calling it "probably an accident." Neither has ever been proven. No one has ever been charged. As of a 2023 forensic review, the file remains officially open. This week, Eli and Simone dig into a case where two of Britain's own institutions reached opposite conclusions from the same evidence, and neither has ever closed the book. Want to see for yourself? The case file has the full story in writing, and the source list shows which claims are confirmed, which are disputed, and which rest on a single account. Case file: https://precisionandinstinct.com/cases/gareth-williams-spy-in-a-bag/ Source list: https://notes.precisionandinstinct.com/episodes/12-the-death-of-gareth-williams.html Leave us your questions and comments: https://rss.com/podcasts/precision-instinct/voicemail/ CONTENT NOTE: This episode discusses an unresolved death that remains an open case; Gareth Williams's family has publicly and repeatedly disputed the official "accident" finding as recently as 2013. The episode also discusses aspects of Williams's private life (a fashion-course enrollment, a wardrobe of women's clothing, and visits to bondage-related websites) strictly within the framing the coroner herself established at inquest — this is not tabloid speculation, and neither host draws conclusions about his sexuality or private life beyond what the official record supports. Neither host reaches a verdict on whether Williams was unlawfully killed or died by accident; the case remains genuinely unresolved. The hosts are fictional characters created by Verb Editorial, with AI-generated voices designed specifically for each one. Each episode is researched and written with AI assistance, then fact-checked, edited, and produced by a human team.

    Spy in a Bag: The Death of Gareth Williams
  7. Sep 20

    The Confessions of Mack Ray Edwards

    Hey! We would love to hear your thoughts, send us a voice note. In March 1970, a Los Angeles highway construction supervisor named Mack Ray Edwards walked into a police station, set a loaded handgun on the counter, and confessed to killing children for sixteen years. Only three of those killings were ever charged. The rest of his claimed victims - a number that grew to as many as eighteen or twenty across his own retellings - were never charged, and the sites he directed investigators to, decades apart, have all come up empty. This week, Eli and Simone dig into what's left when a confession outruns the evidence behind it: a freeway built over one victim's grave, two more empty excavations under freeways and overpasses across two counties, and a debate about how much a dying man's word should count when the physical record can't confirm or rule it out. Want to see for yourself? The case file has the full story in writing, and the source list shows which claims are confirmed, which are disputed, and which rest on a single account. Case file: https://precisionandinstinct.com/cases/mack-ray-edwards-confessions/ Source list: https://notes.precisionandinstinct.com/episodes/11-the-confessions-of-mack-ray-edwards.html Leave us your questions and comments: https://rss.com/podcasts/precision-instinct/voicemail/ CONTENT NOTE: This episode discusses the murders of children, including cases involving surviving family members who may still be living. Several of the discussed cases remain open, unresolved cold cases with no other suspect. Neither host resolves any specific uncharged case as fact - the debate stays at the level of how much an uncorroborated confession should be credited. The hosts are fictional characters created by Verb Editorial, with AI-generated voices designed specifically for each one. Each episode is researched and written with AI assistance, then fact-checked, edited, and produced by a human team.

    The Confessions of Mack Ray Edwards
  8. Sep 13

    The Death of Dag Hammarskjöld

    Hey! We would love to hear your thoughts, send us a voice note. In September 1961, UN Secretary-General Dag Hammarskjöld's plane went down fifteen kilometers from Ndola Airport en route to Congo Crisis ceasefire talks — all sixteen aboard died. The official finding: pilot error. But sixty-five years later, the UN's own investigation is still open, and its most recent report calls an external attack "plausible." This week, Eli and Simone work through six decades of competing evidence — a disputed ballistics finding that undercuts the official explanation for two bodyguards' bullet wounds, letters alleging intelligence-service involvement, dueling named-suspect theories, and a UN investigator who keeps saying member states are almost certainly withholding archives. Neither host lands on a verdict — because the file genuinely hasn't closed. Want to see for yourself? The case file has the full story in writing, and the source list shows which claims are confirmed, which are disputed, and which rest on a single account. Case file: https://precisionandinstinct.com/cases/dag-hammarskjold-plane-crash/ Source list: https://notes.precisionandinstinct.com/episodes/10-the-death-of-dag-hammarskjold.html Leave us your questions and comments: https://rss.com/podcasts/precision-instinct/voicemail/ CONTENT NOTE: This episode discusses a fatal plane crash, real intelligence services (US/CIA, UK/MI5, apartheid-era South African intelligence, Belgium) in connection with a disputed assassination theory, and an investigation the United Nations itself still considers open as of October 2024. Framing is deliberately non-conclusive — neither host names a specific culprit or government. Listener discretion advised given the politically contested subject matter. The hosts are fictional characters created by Verb Editorial, with AI-generated voices designed specifically for each one. Each episode is researched and written with AI assistance, then fact-checked, edited, and produced by a human team.

    The Death of Dag Hammarskjöld

Ratings & Reviews

5
out of 5
2 Ratings

About

Every case has a body, a mystery, and no confession. Precision and Instinct is a true crime debate show built around two hosts who never agree. Eli Marchetti argues the hard evidence — what can actually be proven. Simone Valdez argues the pattern — what the evidence is too careful to say out loud. There is no narrator telling you what to think, and no tidy resolution. Just two sides of every case, argued out in full, and you decide who is right. Each episode takes on a real, unresolved case — from an unidentified man found dead on an Australian beach with a coded poem in his pocket, to the real exorcism that inspired a horror classic, to the oldest unsolved murder in Los Angeles history. Every case gets the same treatment: hard evidence versus pattern and instinct, argued out completely, no verdict handed to you. The case files. Every episode has a companion page at precisionandinstinct.com with the full case in writing and the source list behind it, where every claim is marked confirmed, disputed, or single-source. Listen first, then check our work. https://rss.com/podcasts/precision-instinct/voicemail/ New episodes weekly. SIMONE VALDEZ grew up two blocks from the water in Santa Barbara, in a family of storytellers who trusted their gut long before they trusted the news. Her grandmother read coffee grounds; her mother ran a small business on instinct alone and never once went under. Simone inherited both the skepticism of outsiders and the conviction that some truths show up in a room before they show up on paper. She spent her twenties as a behavioral researcher, then a private investigator's assistant, chasing the parts of a case that never made it into the official report — the pause before an answer, the detail nobody thought to ask about. She has an unshakeable belief that people tell you who they are, if you're willing to actually watch. Precision and Instinct lets her finally say out loud what she's been thinking the whole time. ELI MARCHETTI was raised in a house where dinner conversations doubled as cross-examinations. The son of a Cook County paralegal and a high school chemistry teacher, he spent his childhood summers on the South Side of Chicago, where he learned early that a good story and a true one are rarely the same thing. He studied journalism before switching, halfway through, to statistics — a decision his mother still brings up. Before turning his attention to cold cases and unsolved mysteries, Eli spent the better part of a decade fact-checking for a Midwest newsroom, where he developed a reputation for being the last person in the building willing to sign off on a headline. He now lives by one rule: if it can't be documented, it isn't true yet — it's just a good guess wearing a suit. Precision and Instinct is his first venture into audio, though friends say he's been cross-examining people for free his whole life. The hosts are fictional characters created by Verb Editorial, with AI-generated voices designed specifically for each one. Each episode is researched and written with AI assistance, then fact-checked, edited, and produced by a human team.