I actually wondered while reading if Johnny Clayton was genuinely crazy, or if his insanity was a deliberate plan he cooked up in revenge. Immediately after Deke and Jake brought a halt to his private knife party with Sadie, Johnny started yelling about having a doctor's cert in the car to prove he was unaccountable for his actions. Crafty. Did he have himself fired and committed in order to set the wheels in motion towards getting away with murder despite an obvious motive? I love, love the way that's absolutely possible; if he started out sane and revenge on Sadie was coldly calculated, he probably ended up nuts by inflicting shock therapy upon himself as part of the admission to the state institution, which explains his suicide, defeating the purpose of the plausible plan. But the beauty of it is that Johnny always had quirks, enough of the paranoid visions, the odd routines and unhealthy moods to say yeah, the guy's got a lick of crazy in there, but not enough to stake your life savings on an epic mindwarp into the psycho zone. His traits are shared by vast numbers of 'sane' people. In another When, Johnny probably never went la-la at all...in the Land of Ago, perhaps his thread was wound so tightly with Kennedy's that he had no choice but to feel his wits slip away. His scientific and statistical interests meant that he should have been a rational man. As an added ingredient to the mastery of suspense and joy of story, the Clayton uncertainty was delicious, and considering all the tantalising teasers in Jake's narrative that hinted at events yet to come, I wouldn't put it past Stephen King to have deliberately left us guessing on that score.