I am trying to figure whether this means American police routinely kill people.
Of course it does. The question is whether this is out of malice or not.
He's trying to say that it would be easier to kill Steven Avery than to frame him for a murder he didn't commit. I'm inclined to agree, a lot about it being a setup by the police relies on dumb luck, like the cut on Stevens' finger. Would officers risk being found out by something like this?
McHrozni