Until police are jailed for this, nothing will improve. What's the US equivalent of the Independent Police Complaints Commission?
There is no national body that oversees police, but Chicago has the Independent Police Review Authority. However IPRA rarely upholds complaints against police (it's staffed by ex-cops and other people connected to the police), and recently an investigator was fired after finding a shooting unjustified[1]. [1] http://www.wbez.org/news/city-fires-investigator-who-found-c...
Alrighty, then...