He cuts the skin off the tips of his fingers. That's why we couldn't find one single usable print in his apartment. Looks like he's been doing it for a quite sometime.

— Police Captain (Lee Ermey)

9 seconds sound clip from the Se7en (1995) movie soundboard.

You can hear this line at 01:35:35.664 in the Blu-ray version of the movie.

Quote context

[...]

- On the fucking floor.

- I know you.

- Now. Get down. Get down on your stomach, you piece of shit. Now. All the way! All the way, fucker!

- Down! Faster. Faster. Faster, fucker. Now. Nose on the ground.

- Jesus Christ. What the fuck is this?

- I'd like to speak to my lawyer, please.

- Goddamn it.

- He cuts the skin off the tips of his fingers. That's why we couldn't find one single usable print in his apartment. Looks like he's been doing it for a quite sometime.

- What about the trace on his bank accounts? The guns?

- So far everything's a dead end. No credit history. No employment records.

- His bank account's only 5 years old and it was started with cash. We're even trying to trace his furniture.

- About the only thing we know about that guy right now is that he's independently wealthy, well-educated and totally insane.

- Because he's John Doe by choice.

[...]