Introduction
You want to understand how modern cartel violence developed and why the war on drugs failed. Michael Deibert examines the illicit trade across the United States and Mexico border in In the Shadow of Saint Death. You will see how decades of corrupt institutions, failed prohibition policies, and cross-border trade agreements fueled the rise of ruthless criminal organizations.
The text explores historical roots, military enforcement, financial networks, and policy alternatives.
Consider these questions as you read:
- How did political parties maintain control over criminal networks?
- What caused elite military units to defect and form cartel enforcement wings?
- Why did cross-border gun trafficking and money laundering persist unchecked?
1. Historical Roots and Political Control
The Mexican state of Tamaulipas and its borderlands have a long history of violent conflict, shifting national territories, and a convoluted binational existence heavily shaped by the US-Mexican War. The Institutional Revolutionary Party (PRI) governed Mexico for over half a century through a combination of populism, corruption, vote-rigging, and extreme state violence.
Borderlands and Conflict
The region saw constant instability from nineteenth-century conflicts. These events included the Texas revolution, the Pastry War, and the Mexican-American War. That war resulted in Mexico losing roughly half its national territory via the Treaty of Guadalupe Hidalgo in 1848.
Juan Nepomuceno Cortina led irregular troops and launched a raid on Brownsville in July 1859. He shot a sheriff who brutalized an elderly Mexican man and sparked the Cortina Wars. Seventy-five gunmen attacked Brownsville with Juan Cortina in September 1859.
PRI Hegemony
The regime maintained absolute political monopoly by deploying specialized security agencies, death squads, and local bosses known as caciques. They brutally repressed student protests and leftist guerrilla movements throughout fifty-four years of uninterrupted rule by the PRI.
Soldiers gunned down unarmed student demonstrators during the Tlatelolco massacre at the Plaza de las Tres Culturas in October 1968. At least forty-two people died in the Tlatelolco massacre. At least 700 Mexicans became victims of enforced disappearances by state security agencies.
2. Cartel Evolution and Enforcement Wings
Juan García Ábrego established the Gulf Cartel in Tamaulipas, building a massive cocaine and marijuana smuggling empire through extreme violence and extensive corruption of high-ranking Mexican officials. Cartels recruited elite military personnel to act as heavily armed, ruthless enforcement wings.
The Rise of the Gulf Cartel
Operating from Matamoros and Monterrey, the Gulf Cartel forged strategic alliances with the Colombian Cali Cartel to move dozens of tons of cocaine annually while bribing police commanders, prosecutors, and attorneys general. By 1989, García Ábrego's criminal enterprise moved 40 tons of cocaine annually.
Juan García Ábrego's gunmen raided the Clinica Raya in Matamoros in 1984, spraying rooms with gunfire to kill a rival drug trafficker. An FBI raid on a farm in Harlingen seized 100 million dollars in cocaine.
As Osiel Cárdenas consolidated absolute control over the Gulf Cartel, he ordered the assassination of his co-leader and former partner, El Chava Gómez. This betrayal earned Cárdenas the lasting and deeply disliked moniker of "The Friend Killer."
In July 1999, El Chava Gómez was murdered on the orders of Osiel Cárdenas by Arturo Guzmán Decena, cementing Cárdenas's full control and his nickname El Mata Amigos. Osiel Cárdenas felt completely untouchable within his home base of Matamoros, leading him to directly intercept and threaten US federal agents who were conducting surveillance and speaking with informants.
In November 1999, Osiel Cárdenas blocked a vehicle carrying DEA agent Joe Du Bois and FBI agent Daniel Fuentes in Matamoros, brandishing a gold-plated AK-47 and forcing them to leave the city under threat of death.
Creation of Los Zetas
In early 1997, Gulf Cartel leader Osiel Cárdenas recruited Arturo Guzmán Decena, a soldier from the GAFE special forces unit trained in explosives and counterintelligence. Around thirty military defectors followed, forming Los Zetas using a military radio code for high-ranking officers, bringing advanced tactical training and extreme brutality to the cartel wars.
The year 1997 marked when Osiel Cárdenas reached out to military personnel to form Los Zetas, involving approximately thirty initial military personnel who joined Los Zetas.
Faced with the extreme violence and expansion of Los Zetas, Chapo Guzmán and his allies in the Sinaloa Cartel and the Beltrán-Leyva organization formed their own specialized band of assassins known as Los Negros. Edgar Valdéz Villarreal, nicknamed La Barbie, took charge of Los Negros in 2003 after joining the Beltrán-Leyva organization to fight the Gulf Cartel and Los Zetas for control of Nuevo Laredo.
3. Militarization and Escalating Violence
The transition of power to Felipe Calderón marked the beginning of an aggressive, militarized campaign against organized crime that dramatically escalated open conflict. Cartels transformed victims' bodies into a bloody medium of communication, using extreme mutilation to carve out messages to rival factions.
Calderón's Offensive
Following a fiercely contested 2006 election victory, Felipe Calderón initiated an uncompromising military-led strategy against drug cartels. You witnessed preliminary vote tallies give Felipe Calderón 36.9 percent while Andrés Manuel López Obrador received 35.7 percent, resulting in a margin of 243,000 votes out of forty-one million cast.
Upon taking office in late 2006, Calderón launched a direct military offensive against cartels in states like Michoacán, Tijuana, Guerrero, Chihuahua, Nuevo León, and Tamaulipas. He appointed military leaders and intelligence officials to key cabinet posts across SEDENA, SEMAR, and the SIEDO.
In September 2006, gunmen threw five human heads onto the dance floor of the Sol y Sombra nightclub in Uruapan, Michoacán, leaving a banner stating that La Familia dispensed divine justice. Mexico experienced 2,100 drug-related murders in 2006 compared to 1,300 drug-related murders in 2005. The government sent 7,000 members of the army and federal police to Michoacán in December 2006.
Message Violence
Drawing on sociological concepts of ritual sacrifice, the author explains how factions like Los Zetas mastered a violent grammar, turning murders and body displays into symbolic signals and warnings. High-profile arrests of major cartel figures altered the balance of power, sparking vicious internal feuds and retaliatory assassinations against top law enforcement officials.
The capture or extradition of key lords triggered intense betrayals, leading cartels to target elite investigators and police commanders. Osiel Cárdenas received a 25 years sentence and a $50 million asset forfeiture. Mexican forces seized $900,000 in US currency alongside Alfredo Beltrán Leyva.
PFP head Édgar Millán Gómez, known for his motto ni un paso atrás, was ambushed and killed outside his Mexico City apartment in apparent retaliation for the arrest of Alfredo Beltrán Leyva.
A man was interrogated in a video with a 'Z' carved on his chest and 'Lazcano' on his leg before being strangled and decapitated, preceded by the message 'Do something for your country, kill a Zeta!' and followed by 'Lazcano, you’re next!'
Los Zetas evolved beyond traditional drug trafficking into a highly diversified criminal enterprise while expanding their recruitment to specialized units. The group diversified revenue streams into kidnapping, extortion, mining, and state resource theft. They established dedicated units, such as Las Panteras, consisting of poor young women serving as bodyguards, spies, and assassins.
Ashly Narro López, known as Comandante Bombón, operated as a Zetas operative in Quintana Roo and participated in the murder of Mexican general Mauro Enrique Tello Quiñones. Criminal networks maintained protection through regular payments:
- $7,800 a month paid to local police chiefs;
- $400 per week paid to low-level police officers;
- $1,550 to $3,876 monthly paid to local reporters.
4. Cross-Border Weapons and Financial Infrastructure
US law enforcement agencies implemented flawed gun-walking operations that allowed thousands of firearms to flow directly into the hands of Mexican cartels. Major American financial institutions systematically laundered billions of dollars in illegal drug profits for Mexican and Colombian cartels without facing criminal prosecution.
Operation Fast and Furious
Through programs like Operation Fast and Furious and Operation Wide Receiver, the Bureau of Alcohol, Tobacco, Firearms and Explosives deliberately deferred enforcement action against straw purchasers of assault weapons. Instead of stopping traffickers, the strategy flooded Mexico with lethal weapons linked to multiple murders and cartel shootouts.
In Naco and Mexicali, security forces seized large shipments of AK-47s and other high-powered rifles purchased in Arizona that were directly tracked back to Operation Fast and Furious monitors. Investigators recovered 41 AK-47s in Naco en route to the Sinaloa Cartel.
Hundreds of guns were allowed to cross into Mexico under these programs. At the scene of the fatal December 14 gun battle where US Border Patrol agent Brian A. Terry was killed near Nogales, investigators recovered a pair of rifles linked to straw purchases known to the ATF under Operation Fast and Furious.
Banking and Money Laundering
Major banks like Wachovia, Bank of America, and HSBC failed to monitor massive wire transfers and cash deposits originating from narcotics trafficking. Despite massive regulatory violations and billions in fines under deferred prosecution agreements and violations of the Bank Secrecy Act, no senior bank executives faced jail time.
Wachovia admitted to handling $378.4 billion for Mexican currency exchange houses between 2004 and 2007, paying a $110 million forfeiture and a $50 million fine without criminal charges. HSBC settled a US probe by paying $1.9 billion after handling billions in cash from murderous drug syndicates.
The private prison industry in the United States lobbied heavily for strict drug sentencing and immigration enforcement to maintain high incarceration rates and corporate profits. Private prison operators explicitly acknowledged in securities filings that any decriminalization of drugs or relaxation of immigration laws would reduce the demand for their correctional facilities. They used millions of dollars in political contributions and lobbying, often working through organizations like the American Legislative Exchange Council, to push for mandatory minimum sentences.
The private prison industry grew by 1,600 percent between 1989 and 2009. Corporations like Corrections Corporation of America and the GEO Group generated over $2.9 billion in combined revenue by 2010 while spending millions on federal and state lobbying.
5. Cartel Fractures and Mass Atrocities
The alliance between the Gulf Cartel and Los Zetas fractured in early 2010, triggering a catastrophic war that devastated northeastern Mexico. Central and South American migrants traversing Mexico became prime targets for mass atrocities committed by Los Zetas.
The Rupture
The murder of a Zetas lieutenant by Gulf Cartel loyalists sparked a volcanic reaction and an ultimatum from Miguel Treviño, leading to widespread bloodshed, blockades, and urban warfare across Tamaulipas and neighboring states.
In January 2010, the kidnapping and killing of Víctor Peña Mendoza led Treviño to demand the surrender of the assassin, igniting a war that resulted in hundreds of deaths within weeks.
There were 283 violent deaths in Mexico over the first week of 2010. Another 200 people were killed in Tamaulipas over three weeks in late February and early March 2010.
Criminal groups used narcobloqueos to paralyze cities during these turf battles.
Migrant Massacres
Vulnerable migrants journeying toward the United States were routinely kidnapped and murdered by cartels controlling rural transit corridors, drawing international horror when survivors exposed the scale of the killings.
A wounded Ecuadorian migrant reached a military checkpoint after fleeing a ranch in the San Fernando Valley where fifty-eight men and fourteen women had been slaughtered by Los Zetas.
Estimates indicated that 600 migrants were kidnapped per year on the route.
The systematic abduction and mass execution of bus passengers traveling through Tamaulipas exposed the total breakdown of public safety and institutional oversight.
Cartels targeted public transportation to intercept perceived rivals or innocent migrants, leading to the discovery of massive clandestine burial pits containing hundreds of victims who had suffered blunt force trauma.
Beginning in April 2011, investigators uncovering clandestine pits near San Fernando along the Carretera Federal 101 extracted the corpses of more than 190 individuals, overwhelming the Matamoros morgue.
Mexican Federal Highway 101, known as la carretera de la muerte, became infamous due to mass disappearances and narcofosas discovered by authorities.
In early May 2011, authorities exhumed 193 bodies from forty separate pits, and families of missing persons offered DNA samples for identification.
These sites brought the total number of lives claimed in two massacres over eight months in the corner of Tamaulipas to 265.
Cartels increasingly resorted to mass-casualty terrorism against civilians, exemplified by the firebombing of a casino in Monterrey.
When businesses refused to pay extortion demands, criminal groups utilized extreme violence to enforce compliance, leading to devastating loss of life and triggering national mourning and political fallout for local authorities.
In August 2011, Los Zetas gunmen poured gasoline on the Casino Royale in Monterrey and ignited it after the owners refused to pay 130,000 pesos a week in protection money, killing 53 people.
Authorities subsequently offered a $2.4 million reward for information on the culprits.
6. Policy Debates and Alternatives
Regional leaders challenged traditional US-led prohibitionist drug policies, calling instead for public health approaches and the decriminalization of cannabis. U.S. federal drug enforcement policies have led to mass incarceration while consuming vast financial resources.
Regional Dissent
You can trace the roots of institutional reform to the Latin American Commission on Drugs and Democracy. Its report stated that eradication and criminalization policies had failed entirely.
The report was co-chaired by former presidents Ernesto Zedillo of Mexico, César Gaviria of Colombia, and Fernando Henrique Cardoso of Brazil. They advocated treating addicts as public health patients and redirecting law enforcement entirely toward organized crime.
Guatemalan President Otto Pérez Molina later challenged global prohibition paradigms by advocating for the legalisation and global regulation of drug markets. He argued that prohibition was based on the false premise that global drug markets could be eradicated.
Following a meeting with El Salvador's president Mauricio Funes in February 2012, Pérez Molina announced he would bring up drug decriminalization at a Central American leaders' meeting.
Decriminalization Success
Decriminalizing personal drug use and shifting focus to public health does not increase usage rates. You can observe this outcome clearly in Portugal.
Portugal passed Law 30/2000 in November 2000, which decriminalized personal drug possession and use up to a ten-day supply. The state focused instead on dissuasion, prevention, and treatment.
Thirteen years of post-law data showed no significant increase in dependencies. Drug consumption actually decreased among fifteen- to nineteen-year-olds, and police were freed to target organized crime.
The Open Policy Institute noted that Portuguese police made fewer arrests while seizing larger quantities of drugs after the law was enacted.
The war on drugs has generated staggering casualties across the Americas without curbing the illegal trade. In Mexico, victims included Mayor María Santos Gorrostieta of Tiquicheo and journalist Regina Martínez Pérez in Xalapa.
A 2012 Propuesta Cívica report noted over 70,000 people killed in Mexico since 2006 and 20,851 people disappeared.
U.S. federal drug policies mirrored this devastation through immense expenditures and mass incarceration. Since Richard Nixon announced the war on drugs in 1971, the U.S. spent more than $1 trillion fighting it from 1971 to 2012.
During 2011, 94,600 out of 197,050 federal prisoners were serving time for drug offenses. Furthermore, 2012 saw an estimated 1,552,432 drug abuse arrests in the US, with 82.2 percent of 2012 US drug arrests for possession.
10 Key Ideas
- The Institutional Revolutionary Party governed Mexico for over half a century through a combination of populism, corruption, vote-rigging, and extreme state violence.
- Juan García Ábrego established the Gulf Cartel in Tamaulipas, building a massive cocaine and marijuana smuggling empire through extreme violence and extensive corruption of high-ranking Mexican officials.
- In early 1997, Gulf Cartel leader Osiel Cárdenas recruited Arturo Guzmán Decena, a soldier from the GAFE special forces unit, and around thirty military defectors followed to form Los Zetas.
- Following a fiercely contested 2006 election victory, Felipe Calderón initiated an uncompromising military-led strategy against drug cartels.
- Cartels transformed victims' bodies into a bloody medium of communication, using extreme mutilation to carve out messages to rival factions.
- US law enforcement agencies implemented flawed gun-walking operations that allowed thousands of firearms to flow directly into the hands of Mexican cartels.
- Major American financial institutions systematically laundered billions of dollars in illegal drug profits for Mexican and Colombian cartels without facing criminal prosecution.
- The alliance between the Gulf Cartel and Los Zetas fractured in early 2010, triggering a catastrophic war that devastated northeastern Mexico.
- Central and South American migrants traversing Mexico became prime targets for mass atrocities committed by Los Zetas.
- Regional leaders challenged traditional US-led prohibitionist drug policies, calling instead for public health approaches and the decriminalization of cannabis.