Which Mexican Mafia gang originated in Los Angeles, California, US in the 1980s?
MS-13 MS-13 (Mara Salvatrucha; also known as simply MS or Mara) is an international criminal gang that originated in Los Angeles, California, US in the 1980s. The gang later spread to many parts of the continental United States, Canada, Mexico, and Central America, and is active in urban and suburban areas. Most members are ethnically of Central American origin (principally El Salvador).
Luis Fernando Sánchez Arellano Luis Fernando Sánchez Arellano (b. ca. 1977), commonly referred to by the alias El Ingeniero ("The Engineer"), is a Mexican suspected drug lord and former leader of the Tijuana Cartel, a drug trafficking organization based in Tijuana, Baja California. He competed with three other major cartels, the Juárez Cartel, the Gulf Cartel, and the Sinaloa Cartel, for the illegal drug corridors into the United States.