The murder rate in the Mexican border city of Tijuana spiked with a record-breaking number of murders. The number of murders climbed as drug cartels battle over control of key drug trafficking routes and the control of the lucrative street-level drug distribution business in the region. The escalating violence in the large border city can be attributed primarily to the hostilities between the Sinaloa Cartel and their one-time ally, Cartel Jalisco Nueva Generacion (CJNG).