Hannibal Lecter: So, you'll be wanting lots of these little chinwags, I take it.
Will Graham: I might not have time.
Hannibal Lecter: I do. I have oodles.
Will Graham: I thought you might enjoy the challenge. See if you're smarter than the person I'm looking for.
Hannibal Lecter: Then by implication, you think you're smarter than I am, since it was you who caught me.
Will Graham: No. I know I'm not smarter than you.
Hannibal Lecter: Then how did you catch me?
Will Graham: You had...disadvantages.
Hannibal Lecter: What disadvantages?
Will Graham: You're insane.
Answer: The victims had particular body parts removed. Will saw recipes in the book belonging to Lecter for those particular body parts and made a leap of intuition.
Myridon