Subterranean Homeboy Blues

S1, E2: Greevey and Logan investigate the shooting in a crowded subway of Darnell Chenault and Michael Jones, two young black men. The shooter is described as a young woman, who looks like a ballerina, and that the men threatened her with a screwdriver. Though she is glorified in the press as the "Avenging Angel," when one of the men dies, the D.A. becomes intent on prosecuting her to the full extent of the law as a means to discourage future vigilantism.