ON THE NET...
http://www.freerepublic.com/focus/keyword?k=zetas
http://www.freerepublic.com/focus/keyword?k=ms13
http://www.freerepublic.com/focus/keyword?k=gangs
Your keywords "zetas," "MS-13," and "Gangs" clearly show this group has taken the gangbanger reputation to depths closer to the devil than any other gang I've ever heard about (making Hells Angels look like amateurs).
FBI.gov - Seeking Information: "ADNAN G. EL SHUKRIJUMAH" (ALIASES: "Adnan G. El Shukri Jumah; Abu Arif; Ja'far Al-Tayar; Jaffar Al-Tayyar; Jafar Tayar; Jaafar Al-Tayyar") (VIEW POSTER. Click Here.)