Unless you've been under a rock for the past 48 hours, you should've heard about the killing of Alton Sterling and Philando Castile by the police. Although not all of the details of the killings have come out yet, these two tragedies exemplify a huge issue that is going on in America. Over the past few years, the killings of black people at the hand of police officers have gained much more media attention as more and more people are recording these injustices. In the midst of all this, its great to see huge media influencers step up and speak out about these injustices. Peter Rosenberg from Hot 97 is one of these influencers; watch below as he expresses his outrage live on air while on call with a police officer.