Gregory M Vecchi Author

Gregory M. Vecchi currently serves as a Professor of Criminal Justice and Homeland Security at Keiser University and he is the Principal of VGI Consulting and Training. Dr. Vecchi has over 30 years of law enforcement experience. He was the former supervisory Special Agent and Chief of the FBI Behavioral Science Unit and career FBI negotiator. In these positions, he gained extensive experience assessing and interacting with violent offenders, as well as researching and conducting dozens of training sessions in threat assessment.

Mary Ann Markey received a B.A. in Psychology and an M.A. in Psychology from Florida Atlantic University, and PhD in Conflict Analysis and Resolution from Nova Southeastern University. She currently serves as an Adjunct Professor of Psychology at Ringling College of Art and Design while continuing to conduct research on intra-family violence and homicide, mass murder and serial murder.

Jeffrey A. Daniels earned a B.A. in Psychology at Metropolitan State University–Denver, an M.S. in Counseling Psychology from Central Washington University, and a Ph.D. in Counseling Psychology from the University of Nebraska–Lincoln. He is currently a professor in the School of Counseling and Well-Being at West Virginia University. Dr. Daniels has been engaged in research pertaining to violence and violence prevention for over 23 years and he has engaged in collaborative research with the FBI for over 16 years using Perpetrator-Motive Research Design.