general for possible disciplinary action. the public deserves answers to a number of important questions in this case and we eagerly await the findings of those investigations. jason van dyke faces first-degree murder charges and pleaded not guilty. the mcdonald family attorney says he's in contact with witnesses and at least one has testified before a grand jury. now, let's make one thing very clear. no other police officer has been charged, but we do know that there's an ongoing federal investigation. rosa flores, cnn, chicago. >> let's talk more about this with our guys. richard herman, a new york criminal defense attorney and law professor joining us from las vegas. good to see you as well. so, gentlemen, this really is a really complex case, isn't it? i wonder, avery, how much will