You'll sit there and calmly sentence my boy to death. You cannot do it.
5 seconds sound clip from the Dark Command (1940) movie soundboard.
You can hear this line at 00:40:53 in the Blu-ray version of the movie.
Quote context
[...]
- You bought a horse today from Martin Claussen. The fastest horse he owns.
- Well, that horse could take a man across the border and into safety.
- He's old enough to carry a gun and use it.
- He'll have to stay in my custody.
- You'll sit there and calmly sentence my boy to death. You cannot do it.
- But he'll be safe. He'll get a fair trial.
- I want you to release my boy on bail!
- Please, dad. Let me speak to him.
- Bob, I'm not going to argue with you about right or wrong, or duty or law.
[...]