- What about him?
- Let him go to hell.

3 seconds sound clip from the Kiss Me Deadly movie soundboard.

You can hear this line at 01:32:29.693 in the Blu-ray version of the movie.

Quote context

[...]

- How'd you get that?

- Now listen, Mike. Listen carefully. I'm going to pronounce a few words. They're harmless words, just a bunch of letters scrambled together. But their meaning is very important. Try to understand what they mean.

- Manhattan Project. Los Alamos. Trinity.

- Let's go.

- What about Velda?

- What about her?

- What about him?

- Let him go to hell.

- Let the big slob sit there and think about his girl... what's likely to happen to her.

- I didn't know.

- You didn't know. Do you think you'd have done any different if you had known?

- Diker? Ray Diker!

- The man you pointed out to Velda, what's his name? What's his name?

- William Mist! His name is William Mist!

[...]