Ask yourself what would he study to do the things he's done? What are his interests now? Jack the Ripper, for instance.
9 seconds sound clip from the Se7en (1995) movie soundboard.
You can hear this line at 01:04:07.278 in the Blu-ray version of the movie.
Quote context
[...]
- This guy is methodical, exacting, and worst of all, patient.
- And just because the fucker's got a library card doesn't make him Yoda.
- I propose a field trip. Come on.
- Library.
- Coupons, coupons, free coupons. Discount... Discount coupons.
- They must've had about 50 health violations during the last inspection.
- Could you at least sit across from me? I don't want people thinking we're dating.
[...]