DR.S.Vedder

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DR.S.Vedder

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Chasing Shadows is a psychological thriller in which insight transforms into vulnerability, and surv

Dr. Sarah Walker doesn’t hunt killers—she understands them. As a forensic psychologist with the Defense Intelligence Agency, she has spent her life decoding violence from a safe distance. That distance vanishes when a murdered college student is found posed in ritualistic precision, Greek symbols carved into the scene, and a message scrawled in wax—addressed to Sarah by name. As more bodies surface, each staged as a corrupted Greek Muse, Sarah uncovers the truth: the killer is completing a decades-old pattern of murder and meaning. Nine victims. One final act.

And Sarah is the tenth muse.


Behavioral profiling is not intuition. It is not guesswork. And it is not what television makes it seem. Introduction to Behavioral Profiling presents a clear, evidence-based approach to criminal and investigative profiling grounded in logic, critical thinking, and behavioral science. This book explains how profiles are built from observable behavior, how inferences are properly drawn, and why speculation and unsupported assumptions lead to error.


For decades, hostage negotiation shaped how police responded to crisis. It emphasized patience, containment, and dialogue—and it saved lives.

But active shooter violence changed the rules.

When attacks involve indiscriminate killing without demands or leverage, delay is not neutral. Yet many agencies struggled to shift from negotiation-centered doctrine to rapid intervention models. Why?

Beyond Negotiation examines how institutional habits, liability concerns, command discretion, and media narratives reinforced hesitation—even when time was the decisive factor.

Drawing on behavioral research, federal analyses, and critical incident reviews, this book offers a disciplined look at crisis response in an era where minutes matter—and doctrine must evolve.

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