philando castile, george floyd and ahmaud arbery. reporter: tonight, cries of black lives matter and hands up, don't shoot, echoing from coast to coast. the largest day of demonstrations for george floyd yet. protestors: (chanting) black lives matter! black lives matter! black lives matter! al: i think that the phillip pannell case was a ground zero for what later became the black lives matter movement because many of them, including some that started the slogans, said they watched growing up cases of police abuse and movements and teaneck was a classic part of that. natacha: 30 years ago, 1990, teaneck, new jersey. i marched down cedar lane and here it is, 2020, 30 years later, and i'm finding myself march the same roads for the same exact thing.