Is the Ferguson effect the cause of crime spike (based on the false narrative arround 'hands up don't shoot' and the following retreat of the police from the inner cities).
https://www.theguardian.com/us-news/2016/jun/15/ferguson-effect-homicide-rates-us-crime-study
There are surprisingly few Police shootings in Chicago compared to the overall violence and the numbers are declining in 2016
2016: 11 shoot&killed by police
2011: 23 shoot&killed by police
http://heyjackass.com/2016-police-involved-shootings/