so in 1997, they decided to break away. >> even though the two feuding gangs were cut from the same cloth, today, they're very different. >> the mexican mafia and the orejones have a different personality. you can spot them by talking to them. >> mexican mafia members tend to be older, run their gang with a military-like hierarchy and strict accordance to rules. >> they do not want media attention. the mexican mafia would not talk to us at all. >> they keep a low profile in jail and prison, directing criminal enterprises on the streets. >> they know how to talk to correctional staff and officers here. you see a difference in the respect issue. yes, sir, no, sir. >> thank you, sir. >> uh-huh. >> sorry to bother you. >> thank you. >> they do everything under the table. there's no need to try to intimidate any longer. their name alone provides that command presence. versus a very young group, trying to get their name out, trying to let people know, look,