If he were to claim insanity, this conversation is admissible.
5 seconds sound clip from the Se7en (1995) movie soundboard.
You can hear this line at 01:38:15.991 in the Blu-ray version of the movie.
Quote context
[...]
- I'm not letting this conviction slide. I can tell you that.
- It's your case. Make a decision.
- It has to be the both of you.
- If he were to claim insanity, this conversation is admissible.
- The fact that he's blackmailing us with his plea.
- If in fact there are two more dead.
- Blood from the woman who's face he cut off. And blood from a third party, as yet unidentified.
[...]