It took several months for the first iteration of the Ferguson Effect to become obvious. Michael Brown was fatally shot by a Ferguson, Missouri, police officer in August 2014, triggering local riots and a national narrative about lethally racist police. Officers backed off proactive policing in minority neighborhoods, having been told that such discretionary enforcement was racially oppressive. By early 2015, the resulting spike in shootings and homicides had become patent and would lead to an additional 2,000 black homicide victims in 2015 and 2016, compared with 2014 numbers.
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