DEAR MR. MANSON... It started with a college course assignment, then escalated into a dangerous obsession. Eighteen-year-old honor student Jason Moss wrote to men whose body counts had made criminal history: men named Dahmer, Manson, Ramirez, and Gacy. DEAR MR. DAHMER... Posing as their ideal victim, Jason seduced them with his words. One by one they wrote him back, showering him with their madness and violent fantasies. Then the game spun out of...