Among other Mexican cartels, the Zetas and the Sinaloa Cartel are now fighting over territories in Central America.
At the time, officials described him as a key figure in the Sinaloa cartel.
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Once engaged, he found himself regularly accused of going easy on the Sinaloa cartel.
Guzman is the boss of the Sinaloa cartel, one of Mexico's most powerful drug trafficking operations.
The Sinaloa cartel commits unspeakable violence in Mexico and for years banked at HSBC.
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The state's former head of public security resigned amid allegations that he was in league with the Sinaloa cartel.
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Now, analysts say the Gulf cartel is allied with the Sinaloa cartel, one of the nation's most powerful drug-trafficking groups.
"If I pitted Chicago's traditional organized crime group against Guzman and the Sinaloa Cartel, it wouldn't be a fight, " Riley said.
Patricia Gonzalez Rodriguez, who has denied the charges, asserted that her brother had been kidnapped by members of the Sinaloa cartel.
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Mexican prosecutors accuse Mr Salas of being the man tasked with guarding Joaquin Guzman, the fugitive leader of the Sinaloa cartel.
It is unclear if the informant who tipped the police off in February and the Sinaloa Cartel informant are the same person.
The state on the Pacific coast is home to the powerful Sinaloa cartel, led by Mexico's most-wanted drug trafficker, Joaquin "El Chapo" Guzman.
But since about 2008, the rival Sinaloa Cartel has been challenging the Juarez Cartel, including for control of Puerto Palomas, the records said.
Both planes were purchased through Casa De Cambio Puebla, which had been compromised by elements linked to the powerful Sinaloa cartel of the notorious Joaquin Guzman.
Earlier this month, an alleged senior figure in the Sinaloa cartel, Ovidio Limon Sanchez, was arrested in what authorities said was a major blow to the gang.
The Sinaloa cartel is currently the most capable group in Mexico and its drug lord Joaquin "El Chapo" Guzman is the most wanted man in the country.
He denied he was in cahoots with the Sinaloa Cartel.
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He is Joaquin "El Chapo" Guzman, the infamous Mexican drug lord who is Chicago's most wanted because his Sinaloa cartel supplies a majority of the narcotics in the city.
"As the leader of the Sinaloa cartel, he is one of the most powerful people in the world, but no longer someone we are confident enough to call a billionaire, " the magazine said on its website.
But their control over this territory is now said to be facing a challenge from their former allies, the Gulf Cartel, in an alliance with the Sinaloa cartel led by Joaquin Guzman, Mexico's most wanted man.
The District Attorney's office said the arrests Wednesday are a direct result of a series of arrests in September 2011 by the Dangerous Drug Offenders Unit that involved members of the Sinaloa Cartel, one of the largest drug cartels in the world, operating out of Sinaloa and Juarez, Mexico.
"While Chicago is 1, 500 miles from Mexico, the Sinaloa drug cartel is so deeply embedded in the city that local and federal law enforcement are forced to operate as if they are on the border, " said Jack Riley, who heads the Drug Enforcement Administration's office in the city.
Right now, the Sinaloa alliance and the Gulf cartel are violently fighting for control of some smuggling routes to the United States.
Experts argue that there are now two main players: the Sinaloa (also known as the Pacific) Cartel and Los Zetas.
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