Arguably the high crime rate could be because the police are unaccountable. Why bother solving difficult murders when it's easier to just harass people on the the street to pad your arrest stats?
Police are totally unaccountable. Chicago police receives over 40% of the city's budget. The police profit off of crime in the city. As crime rises there are often calls to fund the police more to combat it rather than invest in the communities where crime is the highest.