By Nana Karikari, Senior Global Affairs Correspondent
United States Secret Service officers fatally shot an armed man who opened fire at a White House security checkpoint on Saturday evening. The violent exchange triggered an immediate lockdown of the executive mansion and left a bystander in critical condition.
The suspect, who died at a local hospital shortly after the incident, was identified by senior law enforcement officials as 21-year-old Nasire Best. Authorities confirmed that Best had a documented history of mental health struggles and multiple prior encounters with security personnel at the restricted perimeter of the White House complex.
The Checkpoint Confrontation
The incident began shortly before 6:00 p.m. ET (10:00 p.m. GMT) on the west end of Pennsylvania Avenue, a pedestrian plaza running along the north side of the complex that had partially reopened to the public just days prior.
According to a preliminary investigation detailed by a Secret Service spokesperson, Best approached a security checkpoint at 17th Street and Pennsylvania Avenue NW, pulled a firearm from a bag, and began shooting at officers. Secret Service personnel immediately returned fire, striking the suspect. Best was transported to an area hospital, where he later succumbed to his injuries. The agency stated that the shooting remains under investigation.
A bystander was also struck by gunfire during the confrontation and remains in critical condition. The source of the bullet that injured the citizen is currently undetermined.
“During the shooting, a bystander was also struck by gunfire. It remains unclear whether the bystander was struck by the suspect’s initial gunfire or during the subsequent exchange of gunfire,” the Secret Service spokesperson added.
Executive Security and Response
President Donald Trump was inside the White House residence at the time of the shooting. The Secret Service confirmed that the president was unaffected and uninjured. A White House official later stated that the president had been fully briefed on the situation by agency leadership.
Vice President JD Vance, White House Chief of Staff Susie Wiles, and Treasury Secretary Scott Bessent had been documented leaving the grounds earlier in the day. It remained unclear whether Vance was still on the property when the weapon was discharged. The president had remained in Washington for the weekend after canceling a scheduled trip to his golf club in New Jersey.
Federal agencies quickly mobilized to support the active investigation. FBI Director Kash Patel announced on X, formerly Twitter, that the bureau was on the scene to assist the Secret Service. The Bureau of Alcohol, Tobacco, Firearms and Explosives, alongside the Metropolitan Police Department, are also participating in the multi-agency probe. The U.S. Capitol Police did not immediately provide information regarding their posture during the event.
Minutes of Chaos on the North Lawn
The gunfire erupted less than an hour after a press lid had been declared at 5:06 p.m. ET (9:06 p.m. GMT), leading many journalists to believe executive movements had concluded for the evening. When the shots rang out at approximately 6:04 p.m. ET (10:04 p.m. GMT), some journalists estimated hearing between 20 and 30 rounds.
Secret Service agents carrying rifles moved rapidly across the grounds, shouting instructions to the remaining press corps. Journalists gathered on the North Lawn were ordered to sprint inside the White House press briefing room and shelter in place. Agents with weapons drawn guarded the entrance to the press facility during the security emergency.
Selina Wang, ABC News’ chief White House correspondent, captured the moment on video while recording a social media update.
“I was in the middle of taping on my iPhone for a social video from the White House North Lawn when we heard the shots. It sounded like dozens of gunshots. We were told to sprint to the press briefing room where we are holding now,” Wang posted on X.
Approximately two dozen media professionals—including photographers, producers, photojournalists, and correspondents—remained locked inside the briefing room until the perimeter lockdown was officially lifted at 6:46 p.m. ET (10:46 p.m. GMT). No law enforcement personnel or White House staff were injured.
Profile of the Suspect
Multiple senior law enforcement officials and intelligence sources revealed that Best had a significant, escalating history of erratic behavior centered on the White House grounds dating back to the previous year.
In June 2025, Best was detained by the Secret Service for obstructing a vehicle entry lane to the complex. After claiming he was “God,” he was involuntarily committed to the Psychiatric Institute of Washington for a mental health evaluation.
The following month, on July 10, 2025, Best was arrested again after breaching a restricted driveway. According to court documents filed in the Superior Court for the District of Columbia, Best stated during that encounter that he was Jesus Christ and explicitly noted that he wanted to get arrested. A judicial order subsequently demanded he stay completely away from the White House grounds.
Investigators analyzing Best’s background discovered that he was well known to personnel for frequently walking around the White House and asking how to gain access at various entry posts. Online screenings revealed that Best had made several unusual claims on social media, including stating he was “the real” Osama bin Laden. At least one post allegedly expressed hostility toward Trump.
Despite these continuous mental health interventions and security warnings, law enforcement sources emphasized that police had never encountered Best behaving violently or wielding a weapon prior to Saturday night.
Context of Heightened Threats
The shooting marks the second major breach involving firearms near the executive mansion in less than a month. The incident follows a highly disruptive shooting at the White House Correspondents’ Dinner, during which guests and administration officials were forced to seek cover.
In that previous event, a suspect identified as Cole Tomas Allen bypassed a security checkpoint while carrying a shotgun, leading to an active exchange of gunfire with pursuing Secret Service agents. According to security footage, Allen sprinted through the checkpoint with the weapon in hand as agents chased closely behind him. He has since pleaded not guilty to charges including the attempted assassination of the president.
Saturday’s checkpoint assault underscores the ongoing, severe security challenges facing federal law enforcement agencies tasked with protecting the nation’s highest officials amid persistent threats.
Ongoing Investigation
The multi-agency task force on the scene continues to examine the trajectory of the gunfire to determine accountability for the injured bystander. Federal investigators are currently parsing Best’s digital footprint and local records to reconstruct the timeline leading up to Saturday’s confrontation, while security protocols at peripheral checkpoints remain under active review.
