Chapman, Steve. “Are blacks to blame for cops' actions?"Chicago Tribune, 07 Dec 2014, , pp. 1.29.When a white cop kills an unarmed black man, many blacks see a pattern of prejudice that generates official suspicion, hostility and abuse based on skin color. Homicides committed by African-Americans declined by half between 1991 and 2008. Since the early 1990s, arrests of black juveniles have plunged by more than half. (Chicago Tribune)