I somewhat agree with you, but in some cases, cops are not innocent and they have killed innocent people/kids in cold blood and defining it as self defense but after providing proofs (like dashcam/ bodycam) they always got away without being punished too! That alone changed people views about cops.
As for this suspect, I hope he either die or get maximum punishment and never get released. Our justice system is kinda Fd up tbh, when he was arrested before he should've been kept in prison for life!