Executive Overview
Over the past decade, the Colombian city of Medellin has undergone a stunning economic and cultural transformation. Once branded as the murderous global capital of Pablo Escobar’s cocaine empire, the metropolis has reinvented itself as an inspiring, cosmopolitan haven. With a booming tourism industry, a plunging murder rate, and year-round temperate weather, Medellin attracted over 1.2 million international visitors, earning glowing accolades from prominent travel publications.
Yet beneath this glossy veneer of economic vitality, urban renewal, and booming nightlife lies a sinister underbelly. Medellin has rapidly evolved into an international hub for sex tourism, drawing thousands of foreigners in search of inexpensive companionship and lax regulatory enforcement. This environment has nurtured a lucrative, highly organized criminal trade: the weaponization of incapacitating psychotropic substances—most notoriously scopolamine, colloquially known as "Devil’s Breath," alongside potent benzodiazepines like clonazepam.
Local criminal factions and predatory networks, often working through dating apps or operating out of the open-air plazas of neighborhoods like Lleras Park, routinely target foreign visitors. By slipping tasteless, odorless substances into drinks or applying them topically, these bad actors reduce unsuspecting victims to zombie-like states of absolute compliance. The consequences range from multi-thousand-dollar robberies emptied from bank vaults and crypto wallets to permanent physical debilitation, aspiration pneumonia, and, in dozens of tragic cases, death.
While municipal authorities, law enforcement agencies, and local government officials have launched high-profile operations to dismantle these criminal cells and restrict sex tourism, the crisis continues to pose a profound threat to international visitors. This investigative report explores the mechanics of these drug-facilitated crimes, the historical origins of the substances involved, the personal harrowing accounts of survivors, and the complex geopolitical and socio-economic realities shaping modern Medellin.
Detailed Chronology: Anatomy of a Setup
To understand how these predatory operations function, one must trace the typical trajectory experienced by victims, who are overwhelmingly foreign men. The mechanics of these crimes rely on social engineering, algorithmic matching platforms, and rapid pharmacological subjugation.
The December 2019 Incident: "Mark’s" Ordeal
The blueprint of these attacks is starkly illustrated by the case of an American professional referred to as Mark. In December 2019, Mark was approached late at night by two significantly younger women while frequenting Medellin’s notorious Lleras Park—a tropical, open-air plaza saturated with bars and solicitation.
Invited back to his nearby apartment, Mark willingly obliged, a detail confirmed by the building’s doorman. Roughly two hours later, the women departed. However, Mark failed to surface the following morning or afternoon. His assistant eventually discovered him nearly incoherent, struggling to breathe, and suffering from an accelerated heart rate.
Rushed to Clínica El Rosario, Mark intermittently woke up in a delusional, manic state. Clinical toxicologist Juan Carlos Fernández noted that while Mark’s presentation initially mirrored acute alcohol intoxication, toxicology testing confirmed no alcohol was present in his system. Instead, doctors suspected he had been systematically dosed with scopolamine.
While in a compliant, pliant stupor induced by the drug, Mark had evidently surrendered the combination to his apartment safe. Thousands of dollars in cash were plundered. Two days post-admission, Mark developed severe aspiration pneumonia—a life-threatening pulmonary complication—and spent weeks grappling with long-term cognitive impairment, memory loss, and decision-making deficits.
The 2025 Airbnb Ambush: James Doolin’s Story
The sophistication of these operations has only grown with the proliferation of dating applications like Bumble and Tinder. In February 2025, 55-year-old Texas businessman James Doolin matched with a woman calling herself Licet, who claimed to be 25 years old.
Taking preliminary security measures, Doolin locked his phone and wallet inside his apartment safe upon returning to his upscale Airbnb, concealing the key in a separate room. After brief conversation, dancing, and a kiss, Licet excused herself to the bathroom. Upon returning in her undergarments, she approached Doolin.
"She took my head, brought it to her chest, and I was out like that," Doolin recalls, believing the perpetrator applied a powdered form of the drug topically.
By the following morning, Doolin was hospitalized. Under the influence of the incapacitating agent, he had retrieved the hidden key and unlocked the safe for his attacker. His wallet containing $1,500, phone, and laptop were gone. Furthermore, a severe fall onto a glass shower door left him with a deeply lacerated knee that, over a year later, has required multiple surgeries and left him walking with a permanent limp.
Bart Mensink and the Crypto Heist
Foreign visitors seeking adventure or digital content creation are similarly vulnerable. In October 2025, 29-year-old Dutch travel blogger and roofer Bart Mensink used Tinder upon arriving in Medellin, connecting with a woman who proposed filming collaborative content in the Laureles neighborhood.
After returning to Mensink’s secure Airbnb, the pair poured drinks. "I take my glass, I take a sip, and from that moment, everything is gone," Mensink states.
Waking up two days later, Mensink discovered his high-end camera gear, drone, and all personal cash had vanished. More devastatingly, upon connecting with his family abroad, he discovered that his Binance cryptocurrency account—holding roughly $116,000 in Bitcoin—had been completely emptied. The pharmacologically induced docility had forced him to willingly surrender passcodes and account credentials before tumbling into a dark psychological depression.
Supporting Context & Metrics: The Pharmacology and the Industry
The Chemistry of Compliance: Scopolamine and Benzodiazepines
The substances deployed by Medellin’s criminal networks—frequently referred to locally as burundangeras—are chosen for their potency and pharmacokinetics:
- Scopolamine (Devil’s Breath): Extracted from the trumpet-shaped flowers of the Brugmansia (or borrachero) tree, which flourishes across the Andean regions of South America, scopolamine is entirely tasteless and odorless. Doses as small as 10 milligrams disrupt neurotransmitters responsible for encoding short-term memory, plunging the victim into a state of chemical hypnosis and profound compliance. However, because scopolamine has an extremely rapid metabolic window, it is notoriously difficult to detect in hospital toxicology screens hours after ingestion. Furthermore, improper dosing frequently triggers multiple organ failure, severe aggression, aspiration pneumonia, or death.
- Benzodiazepines (Clonazepam): Because scopolamine can occasionally render victims volatile or agitated, modern criminal gangs increasingly rely on tranquilizers like clonazepam. Administered in liquid or powdered form, these central nervous system depressants reliably render targets submissive while minimizing violent resistance.
The Historical Evolution of "Truth Serums"
The properties of scopolamine are not a modern criminal innovation; their psychological manipulation potential was discovered over a century ago.
- Early 20th Century: Physicians administered micro-doses of scopolamine during childbirth to induce "twilight sleep," noting that patients entered an uninhibited, highly candid conversational state.
- 1922: Obstetrician Robert House tested the substance on prison inmates, arguing that subjects under its influence were incapable of fabricating lies or exercising complex reasoning. Media reports from the era subsequently coined the term "truth serum."
- World War II & Cold War: The substance was reportedly evaluated and utilized by intelligence agencies, including Nazi researchers and Anglo-American intelligence services, for rapid interrogation. During the 1950s, the CIA integrated scopolamine into its clandestine MKUltra mind-control experiments.
- Judicial Bans: In 1963, the United States Supreme Court formally barred the use of confessions extracted via scopolamine or comparable chemical agents, deeming them unconstitutionally coerced.
- Arrival in Colombia: According to toxicologists, criminal elements in Colombia began weaponizing scopolamine during the 1970s for street-level robberies.
Tourism, Sex Tourism, and Crime Statistics
Medellin’s tourism landscape presents a stark paradox. While global publications celebrate its vibrant culinary scene, natural beauty, and urban innovation, the city serves as a magnet for international sex tourism. Because adult sex work is decriminalized and highly visible, thousands of foreign nationals—particularly from North America and Europe—arrive seeking commercial sex under lax regulatory enforcement.
While the vast majority of tourists and sex workers engage in legal, non-violent interactions, a predatory fringe has capitalized on this demographic. According to municipal police data:
- In 2024, foreign visitor deaths under suspicious circumstances reached 40.
- Official police reports for drug-facilitated thefts totaled 443 cases last year.
- During the first five months of 2026 alone, authorities recorded 304 such reports, signaling a sharp upward trajectory driven by expanding tourism volumes and organized criminal targeting.
Official Statements and Law Enforcement Responses
The municipal government of Medellin, led by Mayor Federico Gutiérrez and security officials, has adopted an aggressive stance against the convergence of sex tourism and organized crime, while simultaneously attempting to protect the city’s international reputation.
City Hall and Police Crackdowns
In response to rising fatalities and robberies, the National Police and municipal administration have launched targeted operations against criminal syndicates. High-profile arrests include:
- “Las Mamacitas,” a cell dismantled after allegedly drugging dating app dates with psychoactive substances.
- “Las Barbies,” a network implicated in stealing over 600,000,000 pesos ($160,000 USD) from international tourists using clonazepam.
Captain Andrés Arboleda, head of theft for the Medellin police, acknowledges the severe physical toll of these incidents. "Some ended up in hospitals, others collapsed in Airbnbs… If you exceed the proper dose, the person can be left like a baby, or die. I’ve known people who have been left in diapers."
The Official Stance on Sex Tourism
Secretary of Security Manuel Villa has emphasized that municipal forces will continue dismantling criminal networks that weaponize seduction and chemical incapacitation. However, city leadership maintains a strict stance regarding the behavior of incoming travelers.
Mayor Gutiérrez has repeatedly drawn a firm line between legitimate tourism and exploitative behavior, pointing to crackdowns on child sex tourism and temporary municipal restrictions implemented in entertainment zones like Lleras Park following high-profile arrests of American citizens. While acknowledging the gravity of the drugging epidemic, Gutiérrez has issued stern warnings to foreign visitors: "People go looking for what they should not be looking for." He urges the international community not to stigmatize a resilient city that has fought tirelessly to overcome its turbulent past.
Future Outlook: Navigating Risk in the City of Eternal Spring
As Medellin looks toward the future, the challenge for municipal leaders, tourism boards, and international visitors is multi-layered. The convergence of open-air nightlife, readily accessible commercial sex, and highly potent, untraceable pharmacological agents creates an environment where complacency carries catastrophic risks.
For law enforcement, the priority remains the systematic dismantling of organized gangs operating out of high-density entertainment districts and impoverished peripheral zones like the notorious "Bronx" sector. Yet, police admit that underground chemical distribution networks are notoriously difficult to eradicate entirely.
For the international traveler, the reality on the ground demands heightened vigilance. As toxicologists, legal experts, and survivors like James Doolin and Bart Mensink attest, the allure of easy romance and vibrant nightlife can rapidly evaporate into a nightmare of financial ruin, long-term physical disability, or mortality. Until systemic socio-economic reforms, stricter app verifications, and robust judicial enforcement fully neutralize the burundangera networks, Medellin’s economic renaissance will remain shadowed by the silent, chemical threat of Devil’s Breath.
