What is Thomas Harris's inspirations for his books?

Question

Thomas Harris writes the most infamous books on suspense.
HANNIBAL RISING, SILENCE OF THE LAMBS, RED DRAGON, HANNIBAL, and BLACK SUNDAY. What are his inspirations for writing about Hannibal Lecter?

Answer 1

I don't know, but when he invited me over I said No Thanks!........lol

EDIT ADD: I just came across it. It was Albert Fish, a horrible killer even by today's standards

http://www.prairieghosts.com/fish.html