In a dramatic and alarming security incident on the evening of Saturday, May 23, 2026, the U.S. Secret Service fatally shot a man who opened fire at a security checkpoint just outside the White House complex in Washington, D.C. The incident sent shockwaves through the nation's capital, triggered a temporary lockdown of the White House, and raised fresh questions about security around America's most protected address.
What Happened Outside the White House
At approximately 6:04 p.m. ET, 21-year-old Nasire Best approached a Secret Service security booth near 17th Street and Pennsylvania Avenue NW — adjacent to the Eisenhower Executive Office Building — pulled a weapon from a bag, and began firing at officers on duty. Between 10 and 20 shots were fired during the incident. Secret Service officers returned fire, striking the suspect. Best was transported to George Washington University Hospital, where he later died from his wounds.
A bystander was also struck during the exchange of gunfire, and it remained unclear whether the bystander was hit by the suspect's initial shots or during the subsequent return fire. The bystander was reported to be in critical condition. Notably, President Trump was at the White House during the incident but was not impacted. No Secret Service personnel were injured in the confrontation.
Who Was Nasire Best?
Best had previous encounters with the Secret Service, court records show — including one occasion where he was involuntarily committed to a psychiatric hospital and another where local police arrested him while he claimed "he was Jesus Christ." Best had a prior incident involving the Secret Service in July 2025 where he tried to enter the White House but was arrested and sent to a psychiatric ward for mental health issues. He had been living in the Washington, D.C., area for approximately 18 months prior to the shooting.
Social media belonging to Best included a post that appeared to threaten violence against President Trump and another where he wrote, "I'm actually the son of God." Investigators are now reviewing his background and online activity to determine a motive and whether any systemic warning signs were missed in the period leading up to the attack.
White House Lockdown and Response
The shooting prompted an immediate lockdown of the White House grounds. Members of the press who were on the North Lawn at the time of the incident were escorted to the press briefing room. The lockdown was lifted after Best's death was confirmed. The Secret Service said the suspect began shooting at posted officers, who returned fire and hit the shooter. The entire incident was captured on video by multiple White House correspondents present at the scene.
This incident comes less than a month after a separate armed breach near the White House Correspondents' Dinner on April 25, 2026 — underscoring a troubling pattern of security threats targeting the highest levels of the U.S. government. For background on how the Secret Service operates and its protective mission, the agency's official mandate is outlined by the U.S. Department of Homeland Security.
A Pattern of Escalating Threats
Security experts and lawmakers are likely to scrutinize how a man with a documented history of mental illness and prior Secret Service encounters was able to approach the White House perimeter armed and prepared to fire. The shooting raises urgent questions about whether existing protocols for flagging and monitoring known individuals who pose a potential threat are sufficient — and what reforms, if any, are needed to strengthen the outer perimeter defenses of the White House complex.
As investigations continue, the incident serves as a stark reminder of the constant and evolving threats facing those who protect the nation's leadership — and the critical importance of robust, proactive security screening around the seat of American government.