Corrected entry: Peter Lyman's secretary thought he had poisoned her because she was finding out that he was the Tarot Murderer. He wasn't, and hadn't yet committed his only murder. So she could have been wrong about having been poisoned, but what could she possibly have found out about him, if he wasn't the murderer at all?
Ioreth
25th Nov 2006
Correction: The secretary read in the papers that a rare cuff link was found at the scene of a murdered prostitute. She phoned someone, telling them this AND that her boss Peter Lyman happened to be missing that exact cuff link. Peter was listening in on this phone conversation. Peter had visited this prostitute and he didn't want THAT information leaking out. Therefore he DID poison the secretary to prevent that.