Protective Intelligence and Threat Assessment Investigations
This is the study that changed executive protection from a reactive discipline to an intelligence-driven one. Fein and Vossekuil analyzed every known assassination and near-lethal attack on a prominent American figure and found that the people who attack public figures almost never make direct threats first. The warning signs are behavioral, not verbal. Any firm protecting you should be running a protective intelligence program — systematically monitoring behavioral indicators, not just screening threatening mail. If your provider cannot explain how they operationalize the "pathway to violence" model from this research, they are still working from an outdated threat paradigm.