Episode 311, "Severed Ties"
SEASON 4, EPISODE 402 - When a cop who mistakenly shot and killed a young black student, is declared innocent, a deeply divided Team One must confront a rioting crowd, a trained bloc of anarchists, and a father whose dreams died the night he lost his son. Crumbling to the pressure of riots and the media, the controversial copís wife leaves him. The angry father lures the cop to the scene of his sonís murder, and at gunpoint, the cop reveals what really happened the night of the boyís death. Jules goes under cover, and is arrested in the riot.