Compared with its peers, America overall does an unusually poor job of solving killings. The murder clearance rates of other rich nations, including Australia, Britain and Germany, hover in the 70s, 80s and even 90s
And yes, its because the cops are racist and break trust with communities
You don’t take on difficult cases, and you ensure that someone is always imprisoned for the cases you take on
I don’t know anything about their system but yeah, if they do that they will clear a lot of cases.