Complex sentence: Toto appears as an interviewee in The Psychopath Test Jon Ronson where Jon asserts Toto is in fact psychopathic according to the Bob Hare Psychopathy Checklist.
Split into simpler sentences: Toto appears as an interviewee in The Psychopath Test by Jon Ronson. Ronson claims that Toto is psychopathic according to the Bob Hare Psychopathy Checklist.