What if evil is not a monster hiding in the shadows—but a mind hiding in plain sight?

A child sits quietly in a classroom.
A neighbor smiles across the street.
A familiar face becomes a name in a crime report.

At what point does an ordinary human being become a serial killer?

The Diagnosis of Evil takes the reader beyond sensational headlines and crime scenes into the psychological architecture of serial murder. Drawing from forensic psychology, psychiatry, criminology, neuroscience, and real-world case studies, the book examines the forces that can shape a violent criminal mind.

From childhood trauma and dysfunctional family environments to personality disorders, fantasy, manipulation, empathy deficits, and the neuroscience of violence, each chapter explores another piece of the puzzle.

Through the lives and crimes of some of history's most notorious serial killers, the book asks difficult questions about nature and nurture, choice and circumstance, pathology and responsibility.

This is not simply a book about murder.

It is an attempt to understand the mind behind it.

Because sometimes, the most disturbing question is not what did the killer do?

It is:

What happened inside the human mind that made it possible?