unite with us no matter what color whatever you are. injustice to one is injustice to all. and we're here to take the mask off mayor rahm emanuel. we want him to resign. what has occurred is not the usual. we cannot allow this to continue to happen in the city of chicago. >> reporter: are you talking about the laquan mcdonald, the ronald johnson video and most recently the phillip coleman video and what these videos capture? >> it began with laquan mcdonald. and we realize that there's more in the history of chicago. the birch tortures, metcalf days, this has been going on for years and years in chicago. >> reporter: so historically. >> historically chicago does not have a good name with the treatment of the people, treatment of citizens. and i'm really proud of the young people that are here today because they're standing up to a legacy, a better legacy for the