www.facebook.com Prison gangs were originally formed by inmates as a means to protect themselves from other inmates. Throughout the years, prison gangs have evolved from a group that provides protection to its members, to criminal entities involved in prostitution, assaults, drugs and murder. 1. Neta 2. 415 KUMI 3. Dead Man Inc 4. Nazi Low Riders 5. Texas Syndicate 6. Mara Salvatrucha MS-13 7. Black Guerrilla Family 8. Mexican Mafia 9. La Nuestra Familia 10. Aryan Brotherhood Music by: Kevin MacLeod