A sleepwalking, homicidal nursemaid; a morally vacant juvenile poisoner; a man driven to arson by a lesion of the will; an articulate and poised man on trial for assault who, while conducting his own defense, undergoes a profound personality change and becomes a wild and delusional alter. These people are not characters from a mystery novelist's vivid imagination, but rather defendants who were tried at the Old Bailey, London's central criminal...