La Mano Negra
The Mexican Mafia (a/k/a 'La/The Eme', 'Emily', 'Maria', 'Mariposa', 'The Hand') is a Mexican-American criminal organization which was founded by juvenile felons incarcerated alongside older convicts in "vocational institutions". These juvenile felons were rumored to have been thirteen in number, though this is likely a legend propagated by Mexican Mafia cadres. They were members of Mexican-American street gangs who had been incarcerated for violent crime and street gang related crime. Since its founding in 1957, the criminal organization has grown to be one of the most powerful forces within the criminal underworld in the San Andreas correctional system despite its comparably tiny size. The organization is infamous for its unwavering influence over Hispanic street gangs throughout Southern San Andreas.