- There's no proof.
- Well, the gun is missing.

4 seconds sound clip from the Clue (1985) movie soundboard.

You can hear this line at 01:25:29.425 in the Blu-ray version of the movie.

Quote context

[...]

- And monkey's brains, though popular in Cantonese cuisine, are not often to be found in Washington, D.C.

- Is that what we ate?

- Why would I have murdered all the others?

- Obviously, in case Mr. Boddy had told them about you.

- So this all had nothing to do with the disappearing nuclear physicist and Colonel Mustard's work on the new fusion bomb.

- No. Communism was just a red herring.

- Mrs. Peacock did it all.

- There's no proof.

- Well, the gun is missing.

- Gentlemen, turn out your pockets. Ladies, empty your purses. Whoever has the gun is the murderer. (2)

- Very well. What do you propose to do about it? Nothing.

- Nothing?

- Nothing at all.

- I don't approve of murder, but it seems to me you've done the world a public service by ridding it of an appalling blackmailer and his disgusting informers.

- But the police will be here any minute. What happens then?

[...]