A gunman who attacked the White House Correspondents’ Dinner in Washington on Saturday night appears to have been acting alone, but is not currently cooperating with authorities, Acting Attorney General Todd Blanche said Sunday morning. 

President Donald Trump, First Lady Melania Trump, Vice President JD Vance, FBI Director Kash Patel, Defense Secretary Pete Hegseth, Homeland Security Secretary Markwayne Mullin and other Cabinet officials were rushed out of the Washington Hilton ballroom, where Trump was attending the WHCD for his first time as president, after shots were fired around 8:40 p.m. on Saturday.

The gunman had rushed a security checkpoint one floor above the ballroom armed with a shotgun, handgun and multiple knives and was tackled by law enforcement, D.C. police chief Jeffery Carroll said at a press briefing hours after the incident. 

Trump released images and security camera video of the moment on Truth Social, where the attacker is seen running past security, who react quickly. He did not reach the ballroom.

The gunman was arrested and taken to a local hospital, though officials say he was not shot during the altercation. One Secret Service officer was shot but was saved by his bulletproof vest, Trump said, and no other injuries were reported.

The suspect has not been named publicly but anonymous law enforcement officials identified him to The New York Times as 31-year-old Cole Tomas Allen of Torrance, Calif. Federal authorities swarmed his home in the Los Angeles area hours after the attack. A LinkedIn account appearing to be connected to Allen indicates he was a video game developer and a part-time teacher.

Blanche said the gunman took a train from Los Angeles to Chicago and from Chicago to Washington where he checked into the Hilton as a guest a day or two before the event. It appears from the initial investigation that the suspect “set out to target folks that work in the administration, likely including the president,” Blanche added. 

An apparent manifesto by the shooter sent to his family members and obtained by CBS News said he was targeting administration officials, “prioritized from highest-ranking to lowest,” because he didn’t want their “crimes” to “coat [his] hands.” He said he would not target “Mr. Patel” — referring to the FBI director — Secret Service, Capitol Police or National Guard troops. “In order to minimize casualties, I will also be using buckshot rather than slugs (less penetration through walls),” he added.

He further criticized what he called the lack of security at the hotel and apologized to his parents “for saying I had an interview without specifying it was for ‘Most Wanted,’” as well as to his colleagues and students for saying he had a personal emergency.

Jeanine Pirro, U.S. attorney for the District of Columbia, said Sunday that the suspect was being charged with using a firearm during a crime of violence and with assault of a federal officer, among other charges, and would be arraigned on Monday.

Trump, speaking from the White House briefing room shortly after the incident, praised law enforcement and members of the media for their response — a change in the president’s usual acrimonious tone with the press. He insisted that the WHCD be rescheduled shortly, and further used the incident to justify the construction of his White House ballroom.