Jean was sixteen years old, an age when sexual passion is strong. It is the middle of the great adolescent period. The new physiological function of sex is established, great psychic changes have occurred. The boy is dreaming dreams, the imagination is active. In the normal boy this means the evolution of ideals, ambitions, moral and religious ideas, attention to dress and appearance, interest in the opposite sex. In the case of the morally well-endowed boy, the sex impulses which have strengthened with the development of the physical potency find their outlet in a kind of vicarious functioning in the shape of polite and friendly association with his girl friends, in chivalric attentions and devotions, with more or less definite plans for future marriage and parenthood. In those with little or no moral principle we see the impulse leaping over the social conventions and attaining complete sexual gratification illegally. With the imbecile the case is different. The fires of sexual passion may burn as vigorously as in the better endowed, but he lacks both the power of control and the courage and ingenuity to overcome the social barriers. He masturbates. This banks the fires somewhat and requires no courage. If stimulated by association with girls, he makes crude and imbecilic plans for conquest. Lacking moral development and ignorant of the more subtle means of accomplishing his purpose, he may resort to violence in some one of the many possible ways. Often he is not conscious of what it is that is driving him and hence does not know where satisfaction lies. Under these conditions his violence may show no outward signs of being sexual. It may show every degree from rough horseplay with girls, such as pushing, pulling, grabbing hat, cloak, or other articles of dress, bantering, teasing, and other forms of personal contact, up to physical injury, torture, and even murder.