Dr. Marisa Randazzo, Ph.D. is the Executive Director for Threat Assessment at Raptor Technologies and brings extensive expertise and experience in threat assessment, threat management, school shootings, and other types of targeted violence and protective intelligence investigations. Previously, she co-founded and led SIGMA Threat Management Associates LLC and served as Executive Director of Threat Management at Ontic. Dr. Randazzo also served for ten years with the U.S. Secret Service, eventually as the agency's Chief Research Psychologist where she co-directed the Safe School Initiative and co-developed the NTAC model, also known as the “federal model” for school threat assessment. Dr. Randazzo is a recognized author of four influential books on threat assessment in educational settings, widely referenced in federal guides and national standards. She holds a Ph.D. and Master's degree from Princeton University and a B.A. from Williams College in Psychology and Religion.