when it comes to police departments investigating themselves with serious uses of force, particularly fatal shootings, i tink think it should be done independent by another agency not by that agency. not that they aren't capable of doing it but certainly the credibility we have at this point in time across the country is such that having that outside look at what took place is something that i think is really needed in our business. >> chief ramsey thank you very much and thank you for the work you're doing with the commission on this issue. appreciate it. chris we have a key race alert right now. we do have breaking news about when hillary clinton will officially launch her 2016 campaign. let's get to cnn senior washington correspondent, jeff zeleny. when have you learned? >> we've learned that former secretary of state hillary clinton is expected to announce her candidacy on sunday. about midday on sunday through a video message that she has already recorded. this has been widely expected