i kind of think it's the black people's fault because their stereotypical "hey what's good brother wanna smoke weed and rob a gas station" has kind of enforced itself over the entire population of the USA. obviously not all black people are like that just like not all gay people are loving interior designers and go "hayy bittchh!".
but msot of the time it's just officers being stuff turds like they usually are. although, it could be the black people! whoa, a black person committing a serious offense, such as the darren wilson stuff and getting punished for it? how loving unheard of! let's loving start a riot against the cops!
thats just my opinion on it