Fatal Grievances (PDF)

Gregory M. Vecchi earned a B.S. in Management/Human Resources from Park University, Parkville, Missouri, an M.S. in Criminal Justice from the University of Alabama, Tuscaloosa, Alabama, and a Ph.D. in Conflict Analysis and Resolution from Nova Southeastern University, Fort Lauderdale, Florida. He currently serves as a Professor of Criminal Justice and Homeland Security at Keiser University, Fort Lauderdale, Florida, and he is the Principal of VGI Consulting and Training. Dr. Vecchi has over 30 years of law enforcement experience. Dr. Vecchi formerly served as the 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, training, and conducting threat assessments. Dr. Vecchi has conducted dozens of workplace threat assessments for Fortune 500 companies.

Mary Ann Markey received a B.A. in Psychology and an M.A. in Psychology from Florida Atlantic University, Boca Raton, Florida, and Ph.D. in Conflict Analysis and Resolution from Nova Southeastern University, Fort Lauderdale, Florida. She currently serves as an Adjunct Professor of Psychology at Ringling College of Art and Design, Sarasota, Florida 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, Colorado, an M.S. in Counseling Psychology from Central Washington University, Ellensburg, Washington, and a Ph.D. in Counseling Psychology from the University of Nebraska, Lincoln, Nebraska. He is currently a professor in the School of Counseling and Well-Being at West Virginia University, Morgantown, West Virginia. 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.