The thought had occurred to me. I know that what saved Kelly's life can save yours. In her courage, in her commitment to listen to intuition, in her determination to make some sense out of it, in her passion to be free of unwarranted fear, I saw that the information should be shared not just with victims but with those who need never become victims at all. I want this book to help you be one of those people.

Because of my sustained look at violence, because I have predicted the behavior of murderers, stalkers, would-be assassins, rejected boyfriends, estranged husbands, angry former employees, mass killers, and others, I am called an expert. I may have learned many lessons, but my basic premise in these pages is that you too are an expert at predicting violent behavior. Like every creature, you can know when you are in the presence of danger. You have the gift of a brilliant internal guardian that stands ready to warn you of hazards and guide you through risky situations.

I've learned some lessons about safety through years of asking people who've suffered violence, "Could you have seen this coming?" Most often they say, "No, it just came out of nowhere," but if I am quiet, if I wait a moment, here comes the information: "I felt uneasy when I first met that guy..." or "Now that I think of it, I was suspicious when he approached me," or "I realize now I had seen that car earlier in the day."

Of course, if they realize it now, they knew it then. We all see the signals because there is a universal code of violence. You'll find some of what you need to break that code in the following chapters, but most of it is in you.

In a very real sense, the surging water in an ocean does not move; rather, energy moves through it. In this same sense, the energy of violence moves through our culture. Some experience it as a light but unpleasant breeze, easy to tolerate. Others are destroyed by it, as if by a hurricane. But nobody—nobody—is untouched. Violence is a part of America, and more than that, it is a part of our species. It is around us, and it is in us. As the most powerful people in history, we have climbed to the top of the world food chain, so to speak. Facing not one single enemy or predator who poses to us any danger of consequence, we've found the only prey left: ourselves.

A violent culture.