
True Crime Mastermind
128 Episodes
True Crime Mastermind — true crime stories for listeners who can't let go of a case. A true crime podcast by OBOMEDIA, built on real events. Every true crime story in our archive begins with a question no one could answer: an unsolved murder, a cold case reopened decades later, a mysterious death the coroner couldn't explain, a disappearance that never made sense. Open the crime files with us. Each episode follows the crime investigation from the first call to the trial — how investigators build a murder case, where a police investigation goes cold, and what justice looks like when it arrives late, or never arrives at all. Some episodes hunt a serial killer who hid in plain sight. Others reconstruct a family murder that tore a town apart, or a murder mystery that turned neighbors against each other. And then there are the missing: a missing person report filed too late; missing persons whose trails went cold within days; a missing woman last seen leaving work; a missing girl whose face was on every screen in the country; a missing man found dead years after he vanished; the missing and murdered whose names deserve to be remembered. We tell every crime story with respect for the victim, for the families, and for those who survived. From the infamous case the whole world watched to the unsolved case you have never heard of, from classic true crime to dark true crime and disturbing true crime, our true crime reports bring you real crime stories, real murder cases, true murder stories and unsolved mysteries — one true crime case at a time, straight from the OBOMEDIA true crime vault. Because if a killer is still out there, the story is not over. New episodes every week. Listen ad-free and unlock premium episodes: 14-day free trial at obomedia.com. © 2026 Created with OBOMEDIA technology. All rights reserved.
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True Crime Mastermind · 128 Episodes
Slept With Her Body Under His Bed
Ep. 128 · 2026-10-22 · 17 min
Slept With Her Body Under His Bed A man called his sister-in-law to cook dinner for his two young daughters, claiming his wife had left. What he didn't say was that her body was in the next room, and he would later sleep with her dismembered remains under his bed. How did a respected prison official become a brutal killer, and what chilling details did a family uncover to expose the truth? In this episode, we analyze the disappearance and murder of Milena Molano Urquina, a 42-year-old woman whose husband, Marlio Cachaya, a subdirector at El Kundui prison, attempted to cover up her death. What evidence did her family find that the authorities initially overlooked? Key Data: Victim: Milena Molano Urquina Perpetrator: Marlio Cachaya Date of Crime: June 16-17, 2023 Location: La Carbona, Florencia, Caquetá, Colombia Perpetrator's Role: Subdirector of El Kundui prison - Milena Molano Urquina was 42 years old and a mother of six daughters. - Marlio Cachaya was a subdirector at the El Kundui prison in Florencia, Colombia. - Milena was stabbed four times and then strangled. - Marlio attempted to incinerate her body, then dismembered it, throwing the torso into the Río Hacha. - Milena's sister, Diana, noticed Milena's glasses on the table, a detail that raised suspicion. - Milena's brother, Guillermo, found her pajama shirt with three tears in the Río Hacha.
A Four-Year-Old Dog Catches the Killer Hundreds of Agents Couldn't
Ep. 127 · 2026-10-21 · 15 min
A Four-Year-Old Dog Catches the Killer Hundreds of Agents Couldn't A man who escaped prison and evaded hundreds of law enforcement officers for fourteen days was finally tracked down by a four-year-old Border Patrol K9 unit. This fugitive, already wanted for murder in Brazil, had brutally stabbed the mother of his children 38 times. How did a single dog succeed where a massive multi-agency manhunt failed? In this episode, we analyze the story of Débora Brandao, a woman who did everything the system asked to protect herself from a dangerous man, only to be failed twice. We explore the pattern of control and violence that led to her tragic death, and the extraordinary escape that brought her killer back into the spotlight. Key Data: Person: Débora Brandao Person: Danilo Cabalcante Dog: Yoda Date: September 13, 2023 Location: Philadelphia, Pennsylvania Crime: Murder Victim: Walter Junior Moreira Victim: Débora Brandao - Danilo Cabalcante, 5 feet tall, escaped a Pennsylvania county prison on August 31, 2023, by climbing between two walls. - He had previously shot a man to death in Brazil in 2017 over a debt from a vehicle repair. - On April 18, 2021, Cabalcante stabbed Débora Brandao 38 times in Chester County, witnessed by her daughter. - Débora Brandao had filed for a protective order and moved to distance herself from Cabalcante in 2020. - Cabalcante was captured on September 13, 2023, by a four-year-old Border Patrol K9 named Yoda, after 14 days on the run.
Fiancée Sends Fake Cartel Threats to Turn Her Boyfriend Into a Killer
Ep. 126 · 2026-10-20 · 19 min
Fiancée Sends Fake Cartel Threats to Turn Her Boyfriend Into a Killer A family of four, including two young children, was executed in their new home, but the scene was staged to look like a chaotic gang attack. What secret did the unlocked kitchen door reveal about the true nature of the crime? In this episode, we analyze the chilling details of a quadruple homicide in Romeoville, Illinois, where a seemingly ordinary man with no violent history became a killer. What twisted manipulation led to such a horrific act? Case: Rolón-Bartolomei Family Murders Location: Romeoville, Illinois Date: September 17, 2023 Victims: Alberto Rolón (38), Soraida Bartolomei (32), Adriel (9), Diego (7) Vehicle: Black Chevrolet Malibu - Police found a trail of blood starting at the front hallway of a house on the 500 block of Concord Avenue. - Four people, including two children, were found dead from multiple gunshot wounds. - Three family dogs were also killed in the home. - Walls were covered with spray-painted insults, furniture was overturned, and two screens were cut, but the kitchen door was unlocked. - Surveillance footage placed a black Chevrolet Malibu near Concord Avenue at 3:17 AM, nearly eighteen hours before police arrived.
The Poisoned Cake: A Birthday Gift From Her "Friend"
Ep. 125 · 2026-10-19 · 19 min
The Poisoned Cake: A Birthday Gift From Her "Friend" A seemingly sweet birthday cake, delivered by a motorcycle courier, turned into a deadly weapon for a 17-year-old girl in Brazil. The toxicology report confirmed arsenic, but who would send such a gift, and why was it from someone Ana Luisa considered a close friend? In this episode, we delve into the tragic case of Ana Luisa de Oliveira Néves, who died just four days after her seventeenth birthday. We explore the intimate details of her life, the delivery of the poisoned cake, and the initial investigation that pointed to a shocking betrayal. Case: The Poisoned Cake Victim: Ana Luisa de Oliveira Néves Age: 17 years old Location: Itapecerra, São Paulo, Brazil Date of Death: June 1, 2025 Cause of Death: Acute arsenic poisoning - On May 31, 2025, a motorcycle courier delivered a cake to Ana Luisa's home. - The cake contained arsenic, enough to be lethal. - Ana Luisa died on June 1, 2025, four days after her 17th birthday. - The notes with the cake used Ana Luisa's nickname, "Lulu linda." - Investigators traced the delivery to someone in Ana Luisa's social circle.
Torre Murano: The Job Interview That Vanished Her
Ep. 124 · 2026-10-18 · 14 min
Torre Murano: The Job Interview That Vanished Her A 21-year-old woman, meticulous about her safety, sent her real-time location to her aunt before a job interview. She was seen entering a building, but never seen leaving. What happened inside Torre Murano? In this episode, we analyze the disappearance of Edit Guadalupe Valdés Saldívar, who vanished after entering a residential tower for a job interview. We examine the critical timeline of events and the institutional failures that followed. Could her death have been prevented? Key Data: Person: Edit Guadalupe Valdés Saldívar Age: 21 years old Date: Wednesday, April 15, 2026 Location: Torre Murano, Avenida Revolución, Colonia Nonalco, Mexico City Borough: Benito Juárez Evidence Bullets: - Edit Guadalupe Valdés Saldívar stopped answering her phone at 4:27 PM on April 15, 2026. - She called her mother at 4:16 PM, calm, on her way to a job interview. - She sent her real-time location via WhatsApp to her aunt, Magdalena, before arriving at the building. - At approximately 4:45 PM, C5 security cameras captured her entering Torre Murano alone. - Her family filed a missing persons report at 1:10 AM on April 16, but was told to wait 72 hours.
Left in the Truck: A Mother's Deadly Scroll
Ep. 123 · 2026-10-17 · 20 min
Left in the Truck: A Mother's Deadly Scroll A three-year-old boy was found lifeless in a locked truck on a residential street, dead for hours before anyone noticed. His mother, Roxana, had been awake until nearly sunrise, scrolling social media while her son sat alone in the vehicle. How could this happen? In this episode, we delve into the tragic death of Vicente, a three-year-old boy left in a truck in Mexicali, Baja California. We examine the complex circumstances surrounding his death, including his parents' escalating divorce, the mother's documented psychological stress, and her activity on social media in the early morning hours. What does the evidence truly reveal about intent and responsibility? Case: The death of Vicente Location: La Rioja neighborhood, Mexicali, Baja California Date: May 2, 2026 Victim: Vicente, 3 years old Mother: Roxana Father: Juan Carlos Mesa - Emergency responders found Vicente without a pulse at 1:28 PM on May 2, 2026. - Forensic evidence confirmed Vicente had been dead for several hours due to severe heat stroke. - Roxana consumed six cans of beer and a bottle of wine on the night of May 1. - Digital records show Roxana was active on TikTok, Instagram, and WhatsApp between 3:00 AM and 5:30 AM on May 2. - Temperatures in Mexicali ranged between 25 and 35 degrees Celsius on the day Vicente died.
The Firefighter, The Axe, and The Secret Diary
Ep. 122 · 2026-10-16 · 19 min
The Firefighter, The Axe, and The Secret Diary A Los Angeles firefighter, hailed as a public hero for his work on destructive wildfires, walked into a police station and confessed to ending his wife's life with an axe. What could drive a man dedicated to saving lives to commit such an act, especially when no one saw any warning signs? In this episode, we analyze the shocking case of Andrew Jiménez, a Glendale firefighter, and the tragic death of his wife, Mayira Jiménez, a beloved third-grade teacher and union representative. How does a life of service and quiet stability suddenly shatter into an unthinkable crime? Case: Mayira Jiménez Date: January 21, 2026 Location: Satsuma Avenue, North Hollywood, Los Angeles Victim: Mayira Jiménez, 41 Perpetrator: Andrew Jiménez, 45 Weapon: Axe - On January 21, 2026, Andrew Jiménez confessed to police where to find his wife's body. - Mayira Jiménez was a third-grade teacher at Wilshire Park Elementary School and a union representative for over 35,000 educators. - Andrew Jiménez was a firefighter and paramedic with the Glendale Fire Department for nearly two decades. - Three weeks before the incident, Andrew Jiménez worked the front lines of the Pacific Palisades wildfires and raised over $3,500 for displaced families. - The couple married in 2014, and neighbors reported no prior arguments or signs of domestic violence.
The Teotihuacán Shooter: A Prophecy Nobody Believed
Ep. 121 · 2026-10-15 · 18 min
The Teotihuacán Shooter: A Prophecy Nobody Believed On April 20, 2026, a man opened fire on tourists at the Pyramid of the Moon in Teotihuacán, an event foretold hours earlier in a chilling online comment that went ignored. How could a public warning, naming the place, date, and perpetrator, fail to trigger any alarm before the attack? In this episode, we analyze the Teotihuacán shooting, focusing on Jaso Ramírez, his quiet digital presence, and the unheeded prophecy. We explore the contradictions between his self-description and his actions, and the details that suggest a premeditated attack. What deeper logic connected this event to a past tragedy? Key Data: Perpetrator: Jaso Ramírez Date: April 20, 2026 Location: Pyramid of the Moon, Teotihuacán Weapon: American-made revolver from the 1960s Online Platform: YouTube - Jaso Ramírez, 27 years old, maintained a YouTube channel opened on June 25, 2019. - A comment on a YouTube video, attributed to an account connected to Ramírez, read: "Today Mexico will be attacked by Columbine AC two. I will be the protagonist at Teotihuacán." - The attack occurred at approximately 11:00 AM. - Ramírez fired a total of 14 shots and reloaded the weapon at least twice. - He wore a plaid shirt, black tactical pants, boots, a face mask, and a backpack, blending in with tourists.
Father Runs to Save His Daughter — He Threw Her Minutes Before
Ep. 120 · 2026-10-14 · 18 min
Father Runs to Save His Daughter — He Threw Her Minutes Before A five-year-old girl fell six stories from an apartment building, and her father was at her side in seconds, weeping. But investigators found an impossible contradiction: he already knew she was falling before she hit the ground. How could a father know his daughter was falling before she even landed? In this episode, we analyze the most widely known criminal case in Brazilian history, where a family's dysfunction and jealousy formed the landscape for a five-year-old girl's final weekend. We explore how physical evidence spoke when people would not, and how 13 minutes on a clock dismantled an entire alibi. Case: Isabela Nardoni Location: São Paulo, Brazil Date: March 30, 2008 Victim: Isabela Oliveira Nardoni, 5 years old Key Evidence: Cut safety net, fibers on clothing - Isabela Nardoni fell six stories from an apartment building in São Paulo. - Her father, Alexandre Nardoni, was found with fibers from the cut safety net on his shirt sleeves. - The safety net across the bedroom window was cut with a sharp implement, creating an opening for a child's body. - Security camera footage showed Isabela alive entering the building with her father and stepmother at 11:23 PM. - A neighbor heard a sound from the garden below at 11:49 PM, 26 minutes after the family entered the elevator.
The Guru Who Enslaved Her Followers
Ep. 119 · 2026-10-13 · 20 min
The Guru Who Enslaved Her Followers A young woman with a full scholarship and a clear plan in Boston was offered a new beginning by a Brazilian influencer with millions of followers. Within weeks, she was sleeping in a gym, unpaid, and unable to leave. How did a self-declared spiritual guru build a system of exploitation behind a brand of light and healing? In this episode, we analyze the case of Cat Torres, a spiritual guru who was sentenced to eight years in prison for human trafficking and slavery. We explore her origins in Belém, Brazil, her modeling career in Europe, and the construction of her online spiritual brand. We also examine the psychological architecture of her brand and how it targeted vulnerable individuals. Key Data: Person: Cat Torres Birth Date: October 24, 1988 Birth Place: Belém, Brazil Sentence: 8 years Crime: Human trafficking and slavery Resolution Date: June 2024 - Cat Torres was born in Belém, Brazil, a port city at the mouth of the Amazon. - At twelve years old, she entered beauty pageants. - By eighteen, a European agency offered her a modeling career in Paris. - In May 2012, she was photographed near Leonardo DiCaprio at the Cannes Film Festival. - She arrived in New York in 2013 and lived with Leer Twersky. - Leer Twersky observed a package of cash arriving, indicating an undisclosed financial dimension. - Cat Torres positioned herself online as a healer and guide, accumulating millions of followers. - Ana, a student at the University of Boston, was offered $2,000 a month and a flight to New York by Cat Torres.
Refrigerator Heads: The Son Who Vanished Forever
Ep. 118 · 2026-10-12 · 15 min
The Freezer, The Scorpion, The Missing Head
Ep. 117 · 2026-10-11 · 19 min
The Woman Who Documented Her Own Murder
Ep. 116 · 2026-10-10 · 19 min
Daughter Hires Killers to Murder Her Own Parents
Ep. 115 · 2026-10-09 · 17 min
IRS Agent Uses His Wife's Photo to Lure a Stranger to His Death
Ep. 114 · 2026-10-08 · 19 min
Bride Vanishes After Husband Flees Her Shooting Death
Ep. 113 · 2026-10-07 · 19 min
She Left for a Birthday Party and Never Came Back
Ep. 112 · 2026-10-06 · 19 min
The Veteran, The Church, and The Grocery Bag Killer
Ep. 111 · 2026-10-05 · 18 min
Guitarist Finds a Stranger Dead After Two Confessions Contradict Each Other
Ep. 110 · 2026-10-04 · 21 min
Neighbor Finds One Detail on a Moto That Condemns a Killer
Ep. 109 · 2026-10-03 · 19 min