You can kill a man by shoving an ice pick into the base of his brain, and leaving a puncture so small the naked eye can't see it.
6 seconds sound clip from the Invasion of the Body Snatchers (1956) movie soundboard.
You can hear this line at 00:32:35.462 in the Blu-ray version of the movie.
Quote context
[...]
- What you saw was the body of a murdered man. Did you examine it carefully?
- Yes.
- I don't know what's happened to it. It was not an ordinary body and there wasn't a mark on it.
- I checked it too when I put it on the table. There wasn't a scratch.
- Danny, you're ignoring the fact that this was not a normal body.
- You heard what Teddy said about the hand.
- I heard lots of things Teddy said, and none of them made sense.
- Alright now hold onto it, pal, I was here too. So was Miles.
[...]