One of authors of this book is John Douglas - twenty five years was the спецагентом of FBI in the United States of America, headed till recently an auxiliary inquisitional department in this Bureau. On his account there are the over thousand investigated businesses related to the feasance of the heaviest crimes, including atrocious serial murders, murders related to the thefts and sexual exploitation of children in the USA.John Douglas tells oh to work of the department and, in particular, about the fruitful search of criminals on the basis of the method - analysis of profile of personality of killer worked out by them - on photos from a crime scene. John Douglas and his colleagues not only with exactness specified on the type of criminal but also described his behavior after the commission of crime. A book arms with a reader experience for that many heroes of this sad narration paid by life.A book was also published under the name the "Psychological portrait of killer. Clinical stories"