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| ('businessinsider.com/afp-war-for-sinaloa-cartel-leaves-trail-of-bodies-in-mexico-2017-6', 26)              | In February , Guzman 's sons penned an >>>open letter accusing Damaso Lopez Nunez of trying to kill them<<< in an ambush                                                                                                                                                                                                                                                                                                    |
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| ('businessinsider.com/damaso-lopez-talking-to-us-el-chapo-guzman-sinaloa-cartel-2018-1', 30)                | The younger Lopez was also >>>believed to be the leader<<< of an armed wing of the Sinaloa cartel                                                                                                                                                                                                                                                                                                                           |
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| ('businessinsider.com/el-chapo-guzman-in-a-us-jail-as-el-mayo-and-sinaloa-cartel-fight-cjng-2019-4', 15)    | " The Sinaloa cartel is conducting retribution against Damaso 's relatives for the attempted assassination of Mayo and Chapo 's sons , " Mike Vigil , former chief of international operations for the US Drug Enforcement Administration , told Business Insider in March , referring to a 2017 incident in which >>>Zambada and Guzman 's sons accused Lopez<<< of inviting them to a meeting and attempting to kill them |
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| ('businessinsider.com/el-chapo-guzmans-sinaloa-cartel-weakening-while-hes-in-a-us-jail-2017-7', 25)         | Two of them were kidnapped in Jalisco state in August , reportedly at the behest of the CJNG and Lopez , and they say >>>Lopez led a near fatal ambush on them<<< in Sinaloa in February                                                                                                                                                                                                                                    |
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| ('businessinsider.com/feds-el-chapos-sons-indicted-on-drug-conspiracy-charges-2019-2', 14)                  | Jesus Alfredo and Ivan Archivaldo also claimed to have been >>>ambushed in early 2017<<< as they and cartel leader Ismael " El Mayo " Zambada arrived for a meeting called by longtime cartel member Damaso Lopez Nuñez                                                                                                                                                                                                     |
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| ('businessinsider.com/joaquin-el-chapo-guzman-us-court-case-plea-deal-violence-in-mexico-2017-2', 35)       | Recent violence in Mexico has also been driven by the >>>apparent turmoil within the Sinaloa cartel<<< , where Guzmán 's sons and allies are competing with another faction for control of the sprawling smuggling empire Guzmán helped build                                                                                                                                                                               |
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| ('businessinsider.com/juan-esparragoza-moreno-el-azul-el-chapo-business-partner-jail-escape-2017-3', 17)    | Along with Zazueta and Monzon were Jesus Peña Gonzalez , aka El 20 , thought to be the security chief for Ismael " El Mayo " Zambada , a top Sinaloa cartel figure who is still free ; Alfredo Limon Sanchez , aka El Limon , a confidant of Zambada ; and Rafael Guadalupe Felix Nuñez , aka El Changuito Antrax , a financial operator in Los Antrax , an armed group >>>aligned with the Sinaloa cartel<<< .             |
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| ('businessinsider.com/juan-esparragoza-moreno-el-azul-el-chapo-business-partner-jail-escape-2017-3', 22)    | The escape comes at an especially >>>fraught time for Sinaloa state<<< and its eponymous cartel                                                                                                                                                                                                                                                                                                                             |
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| ('businessinsider.com/juan-esparragoza-moreno-el-azul-el-chapo-business-partner-jail-escape-2017-3', 28)    | In early February , two of Guzman 's sons and " El Mayo " Zambada were >>>reportedly ambushed<<< by another high-ranking Sinaloa cartel member , Damaso Lopez Nuñez                                                                                                                                                                                                                                                         |
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| ('businessinsider.com/juan-esparragoza-moreno-el-azul-el-chapo-business-partner-jail-escape-2017-3', 29)    | Some >>>reports attributed<<< the attack to Damaso Lopez Serrano , the son of Lopez Nuñez who is thought to be the founder of Los Antrax , the armed group for which one of the escapees worked                                                                                                                                                                                                                             |
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| ('businessinsider.com/mexican-drug-cartel-narco-violence-man-thrown-from-airplane-2017-4', 15)              | Sinaloa state , long a hub for drug production , has become >>>a battleground in recent months<<< , especially after the extradition of Joaquin " El Chapo " Guzman , the longtime kingpin who guided the Sinaloa cartel to the top of Mexico 's narco hierarchy                                                                                                                                                            |
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| ('businessinsider.com/mexico-el-chapo-guzman-sinaloa-cartel-arrests-pressure-2017-5', 2)                    | In the months since former Sinaloa cartel chief Joaquin " El Chapo " Guzman was turned over to US authorities , Mexico has seen spiraling violence in the territory controlled by his cartel , as >>>rivals , underlings , and siblings<<< compete to assume control — a battle that started in the months after Guzman 's January 2016 arrest                                                                              |
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| ('businessinsider.com/mexico-el-chapo-guzman-sinaloa-cartel-arrests-pressure-2017-5', 4)                    | The most recent major apprehension came in early May , when Mexican authorities arrested Damaso Lopez Nuñez , 51 , a longtime confidant of Guzman who , in recent months , is believed to have >>>mounted a violent campaign<<< to assume control of the Sinaloa organization                                                                                                                                               |
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| ('businessinsider.com/mexico-helicopter-kills-cartel-kingpin-amid-cartel-conflict-2017-2', 38)              | That primacy seems to be in doubt now , however , as Guzmán 's extradition appears to have set off >>>a battle for control of the cartel<<<                                                                                                                                                                                                                                                                                 |
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| ('businessinsider.com/mexico-political-government-cartel-changes-with-increasing-violence-2017-3', 22)      | Sinaloa state , which appears to be >>>straining under a Sinaloa cartel internal conflict<<< , saw a 51 % spike in homicides                                                                                                                                                                                                                                                                                                |
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| ('businessinsider.com/mexico-violence-monthly-homicide-record-2017-4', 15)                                  | Mexican authorities and observers have blamed the rise in killings on turf battles stemming from breakdowns in the leadership of some cartels , >>>like the powerful Sinaloa cartel<<< , and the splintering of others , like the Zetas , into smaller gangs                                                                                                                                                                |
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| ('businessinsider.com/mexico-war-on-cartels-failure-violence-defense-intelligence-agency-chief-2018-2', 16) | ( Sinaloa cartel infighting caused >>>violence to spike<<< in northwest Mexico in 2016 and early 2017 .                                                                                                                                                                                                                                                                                                                     |
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| ('businessinsider.com/police-in-sinaloa-state-are-outmanned-outgunned-and-overwhelmed-2017-6', 6)           | Two of Guzman 's sons , >>>Jesus Alfredo and Ivan Archivaldo<<< , lead a second faction , fighting to assume the drug-trafficking throne to which they see themselves as heirs                                                                                                                                                                                                                                              |
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| ('businessinsider.com/r-mexicos-2016-murder-tally-exceeds-those-of-many-countries-at-war-study-2017-5', 37) | A >>>split within the Sinaloa cartel<<< , which was run by kingpin Joaquin " El Chapo " Guzman until his arrest last year and has long been considered the country 's most powerful cartel , and the continued ascent of fearsome newcomers the Jalisco New Generation cartel , also contributed to the rise , Sampaio said                                                                                                 |
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| ('businessinsider.com/sinaloa-cartel-el-chapo-guzman-drug-trial-guilty-verdict-2019-2', 38)                 | The cartel he helped build appears solidly in the hands of his sons and his erstwhile partner , Zambada , >>>after months of fighting for control<<< of it in the wake of his capture in 2016                                                                                                                                                                                                                               |
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| ('businessinsider.com/sinaloa-cartel-member-damaso-lopez-el-mini-lic-surrendered-to-the-us-2017-7', 28)     | In addition to Lopez Nuñez 's partnership with the Jalisco New Generation cartel , the elder Lopez was also accused of >>>orchestrating an ambush<<< on Zambada and Guzman 's sons in February that killed several of their body guards                                                                                                                                                                                     |
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| ('businessinsider.com/sinaloa-cartel-wanted-to-smuggle-100-tons-of-cocaine-on-an-oil-tanker-2019-1', 26)    | In the months after Guzman 's arrest in January 2016 , violence spiked in some parts of Mexico , as >>>a fight for control of the cartel played out<<< between Guzman 's sons , allied with Ismael Zambada , and other rivals                                                                                                                                                                                               |
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| ('businessinsider.com/trial-of-el-chapo-guzman-revealing-details-about-his-prison-escapes-2019-1', 56)      | After the kingpin 's arrest in January 2016 , a >>>factional struggle emerged within the cartel<<< , pitting Lopez and his son , Damaso Lopez Serrano , against Guzman 's sons , who were allied with Ismael " El Mayo " Zambada , a cartel figure on the same level as Guzman and who Guzman 's lawyers have tried to cast as the true leader of the cartel                                                                |
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| ('businessinsider.com/us-targeting-ruelas-torres-drug-trafficking-tied-to-sinaloa-cartel-2017-5', 18)       | Since that attack on Guzman 's mother 's home , his sons have faced two attacks : a weeklong kidnapping in August and what appears to have been a >>>failed assassination attempt<<< in early February                                                                                                                                                                                                                      |
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