"Gilgamesh and the Homeboys" is a short story by Harry Turtledove that appeared in the now-defunct publication Pulphouse Spring, 1991. It has not been reprinted. It is an urban fantasy piece, set in Los Angeles. In it, members of the fictional Slidin 60s Crips street gang encounter the legendary king Gilgamesh, with disastrous results.
The story is told through the POV of a Crip with the street name of Whiteman. When a young initiate, Little Snake, tells Whiteboy that a strange white man is in their neighborhood wearing red, Whiteboy collects two other gang members, Earring and Tiger, and the four confront the white man for wearing the color of their primary rival, the Bloods. The strange man reveals himself to be Gilgamesh, although the name means nothing to the Crips. When Tiger initiates a physical confrontation, Gilgamesh hacks him down, and attempts to kill the others. Whiteman kills Gilgamesh by shooting him repeatedly with an M16.