United States v. Richard Santiago, A/K/A "Chuco"

D.W. NELSON, Circuit Judge:

Richard Santiago appeals his conviction for the first degree murder of Johnny Estrada, a fellow inmate at the United States Penitentiary at Lompoc, California (“USP-Lom-poc”). Santiago argues that the district court erred in admitting evidence relating to the Mexican Mafia, a prison gang at USP-Lompoc, because it should have been excluded under Federal Rule of Evidence 404(b) and because it violated his equal protection rights. He also asserts that the prosecution improperly bolstered witness testimony, that the government’s closing argument constituted…