[@TheWildBunnii][@Dirty Pretty Lies] I was looking up some info about gang tattoos and found info pertinent to your question on [url=http://latinoprisongangs.blogspot.com/2009/09/mexican-mafia-la-eme.html]this site![/url] There's also a lot of info about when/where mafia gangs formed, and links at the bottom of each page to info about many other groups.