and killing a black teenager. y jason van dyke, the white chicago police officer who shot 17-year-old laquan mcdonald to death in october of last year is facing first-degree murder charges tonight. just a short time ago, chicago mayor rahm emanuel and chicago police superintendent garry mccarthy pleaded for calm. >> people have a right to protest, people have a right to free speech, but they do not have a right to make criminal acts. >> and joining us now is the "hardball" roundtable, april ryan is white house correspondent for american urban radio networks. sabrina siddiqui is a reporter for the guardian. here in new york, we have ari melber. you've been following this very closely. let me start with you. what do we know on the terms of the timing of all of this. i know there was a court order that the video had to be out by tomorrow. some people look at this and say, what i do this at night if you could have waited until tomorrow morning?