Yes, some very bad operators, I agree.
But until everyone who murders is held accountable, I’d have to say let these boys go. You can’t have one brand of homicide get punished while letting another one operate with impunity (in a civilized society).
There are thousands of premeditated murders every day in the US.
Hopefully the ones you want to set free will get you or someone you love the next time...Then what will your reaction be dimwit?