He found out that you had done wrong to him. At least he believed you had done wrong.

8 seconds sound clip from the A Clockwork Orange movie soundboard.

You can hear this line at 02:10:05 in the Blu-ray version of the movie.

Quote context

[...]

- There are certain people who wanted to use you for political ends.

- They would have been glad to have you dead for they thought they could then blame it on the government.

- There is also a certain man, a writer of subversive literature, who has been howling for your blood.

- He's been mad with desire to stick a knife into you.

- But you're safe from him now. We put him away.

- He found out that you had done wrong to him. At least he believed you had done wrong.

- He formed this idea in his head that you had been responsible for the death of someone near and dear to him.

- He was a menace. We put him away for his own protection. And also for yours.

- Where is he now, sir?

- We put him away where he can do you no harm.

[...]