Over the last ten years, US anti-narcotics agencies have witnessed a heroin epidemic that tripled the number of heroin addicts and caused more than 40,000 overdose deaths. The epidemic is the result of many factors, but there is one simple yet determining reason: the change in color of the heroin.
Dámaso López Núñez, alias "Licenciado," is a prominent figure of the Sinaloa Cartel. Authorities believe he was the closest associate of legendary kingpin Joaquín "El Chapo" Guzmán, and might replace him as leader of the cartel after the latter was captured in January 2016 and extradited to the United States a year later.
Costa Rica's Attorney General said local criminal groups are being recruited and trained by Mexican drug cartels, further indication of the evolving relationship between drug trafficking networks in these two countries.
Mexico's Marines said they had shot and killed a major leader of the Beltrán Leyva Organization, an illustration that state security forces are having an impact on the power struggle among drug trafficking titans in the country.