In the book:
Psychopathy. Antisocial, Criminal and Violent Behaviour.
1998 Guildford Press. ISBN:1-57230-344-1. Theodore Millon et al.
I have come across an interesting chapter: Psychopathy in the Pedophile.
Chapter 19. pages 304 - 320. The author is Darvin Dorr
" This chapter presents the thesis that the majority of pedophiles are psychopathic, or manifest to a significant degree the psychological characteristics of the psychopathy."
I have not before come across any writings that gives clear and unambiguous support to the idea that pedophiles are psychopathic. Not just this particular chapter, but the whole book is very interesting. Most of the chapters can be understood by the layman.