The Sinaloa cartel has had a tight grip on street drug trafficking in Chicago for decades, controlling 80% of all illicit drug sales, according to federal investigators. But is the grip slipping?

Chicago Sun-Times: 'El Mencho,' leader of Jalisco New Generation Cartel that supplies U.S. cocaine trade, killed by Mexican army

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'El Mencho,' leader of Jalisco New Generation Cartel that supplies U.S. cocaine trade, killed by Mexican army

NBC Chicago: Chicago aims to be the last stop on the road for El Chapo's drug cartel

Chicago aims to be the last stop on the road for El Chapo's drug cartel

MSN: 'Fear is everywhere': BBC reports from Mexican city turned into war zone by drug cartel feud

'Fear is everywhere': BBC reports from Mexican city turned into war zone by drug cartel feud

seattlepi.com: Violent aftermath of Mexico’s ‘El Mencho’ killing follows pattern of other high-profile cartel hits

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Angélica Durán-Martínez, UMass Lowell (THE CONVERSATION) The death of a major cartel ...

Violent aftermath of Mexico’s ‘El Mencho’ killing follows pattern of other high-profile cartel hits

The death of a major cartel boss in Mexico has unleashed a violent backlash in which members of the criminal group have paralyzed some cities through blockades and attacks on property and security ...