separating enemies is a constant challenge for gang investigators like deputy gaiman. >> the unique thing about gangs now, it's not the traditional bloods versus crips. traditionally, someone was wearing blue, you knew they weren't going to get along with somebody wearing red. the colors are starting to go away now and it's becoming a lot harder to track who's getting along with who and who's currently feuding. ♪ >> the rap music and the exposure on social media does add fuel to the fire between different gangs. it's caused a t of the gangs here to clique up in more a neighborhood-typesetting. >>ne of the mostotorious neighborhood gangs in sacramento is the zillas. >> the zillas are more of a blood subset. primarily they're from oak park, which is like a blood stronghold in sacramento are it's where you're going to find probably 95% of your zilla gang members. >> four mile the away from oak park, one of the senior members of the zillas has been sitting in sacramento's downtown jail