It's a message to certain people,and not to a rival gang. The ratzzz have been doing the same, killing internet "snitches". The levas are going the wrong way.
BTW you'll get more info on borderlandbeat, If you see higher traffic in your neighborhood just know that it might be the levas or ratzzz... getting ready for a levanton. If you know what to look for, these ratzzz are easy to catch.

[link to www.youtube.com]
la sierra madre me miro nacer ,
en el este creado , aya por LA ,
amigos sinceros que son del gobierno ,
pacifico , centro , cerca de los cerros
"cristians,romans,apostles, devils,
they program my job"