This phenomenon has been known since the 70s.
So when in 2021, we are still making SCORPION units to "address the rising murder rate," it makes no sense at all.
Brutalizing Tyre Nichols makes the murder rate *go up* not go down. It makes it *easier* to get away with murder, not harder.
Think of any US city with a high murder rate.
Notice that it has a low murder clearance rate (they're not catching any murderers).
Notice that police brutality in that city is even higher than average.