For reference, in the US there have been 470 people killed by the police just this year; that's ~3 people a day. Not debating just/unjust - just facts as compiled by The Guardian [1]
The Economist wrote about this divergent trend between America's police and other nations, including in this potent chart [2]:
"Deaths from Police Shootings" (latest year available) Japan = 0 Britain = 0 Germany = 8 America = 458
[1] http://www.theguardian.com/us-news/ng-interactive/2015/jun/0...
[2] http://www.economist.com/news/united-states/21636044-america...