The Guardian has logged every police killing in America this year, and, as of 1 July 2015, 547 people have been killed by law enforcement. (This video shows the figures up to 29 June 2015, when 545 had been killed.) Of those, the vast majority were shot dead despite more than one in five of these victims being unarmed. Black people have been disproportionately killed, at a rate twice that of white and Hispanic/Latino people.
Source: [The Guardian]