Mexican Army and police forces clashed with the notorious Gulf Cartel, resulting in the death of its high-ranking member and founder of Los Zetas, Arturo Guzmán Decena. As Guzmán Decena's reign of terror came to an end, so did his bold ambitions to take over the country's lucrative drug trade. This marked a significant blow to the cartel's operations and sent shockwaves throughout Mexico's criminal underworld.