Assassination Attempt Event Security Shooting Incident Police Response Secret Service Gunshots Protectee Safety Secret Service Response Suspected Shooter Casualties Response NYPD Public Cooperation Presidential Security Detail Assassination Prevention Secret Service Failure Protective Service Oversight Emergency Response Campaign Rally National Unity Independent Review National Security Investigation Threat Assessment Risk Mitigation Republican National Committee Presidential Security Public Safety Rooftop Surveillance Police Protocol Roof Security Assassination Attempts Whistleblower Revelations Whistleblower Claims Ballistic Glass Extremism Prevention Inauguration Security Democratic National Convention Incident Response Protective Measures Evacuation Procedures Protective Assets