especially for the veterans of the ferguson movement who have gone through all the confrontations, the nights after nights of tear gas. when they come to new york city or they come to washington, d.c. and see what many of them believe is a movement here getting permits, asking police to shut streets down. that's not what they're used to. that is that organization and those groups trying to mature. these seem to be the growing pains. >> yeah, although quiet honestly for many in part. that might be a suggestion that this is sustainable because of course unity is always false. there's always these interconnections. all of that said, the there are still some very key points of unity, clarity, what is this march ultimately all about? . >> reporter: exactly. now the organizers of the march against police violence and police abuses. they've gathered the families of so many loved ones who have been killed by police. so it's supposed to be about all