Tier A - Overview
Date: November 22, 1963
Location: Dallas, Texas, USA
Summary: Assassination of President John F. Kennedy is remembered as an assassination aimed at a specific public figure, with broad societal impact. The prevention lesson centers on approach vectors, protective layers, and credible-threat reporting prior to public appearances.
Key prevention lens:
- Escalating grievance or fixation tied to a person, place, ideology, or perceived injustice.
- Leakage: statements of intent, threats, or ominous communications that merit documentation and follow-up.
- Preparation behaviors: access-seeking, planning, acquisition, testing, rehearsal, or sudden "energy burst".
- Audit route planning, standoff distance, and how threats are documented and escalated.