The suspect in the shooting at the White House Correspondents' Dinner traveled from Los Angeles to Washington by train and checked into the hotel where the event was held — with two guns and a plan to target Trump administration officials, the nation's top prosecutor said on Sunday.

"We know that there were some writings, and we've already spoken with several witnesses who knew him," Todd Blanche, the acting US attorney general, said on NBC News' "Meet the Press."

Blanche stressed several times during the interview that the information about the suspect, widely identified by media citing law enforcement officials as Cole Allen, was "very preliminary."

Blanche said the suspect will be formally charged in federal court on Monday morning and faces at least two felonies — assault on a federal officer and discharging a firearm during that assault — that relate to a Secret Service agent who was shot at but protected by his armored vest.

No one else was injured during the chaotic incident at the Washington Hilton, where hundreds of journalists and government officials — including Trump, the first lady, Vice President JD Vance, and House Speaker Mike Johnson — were gathered for the annual celebration of a free press.

The shooting has raised questions about the level of security at the event, which Trump boycotted in his first term and last year. He was quickly hustled off stage and evacuated to the White House after the shots rang out.

A security video posted by Trump on Truth Social hours after the shooting showed an individual running past security officers outside the main doors of the event. Officers in the video could be seen trying to grab the man, then drawing their weapons and pointing their guns at him.

In a press conference following the incident, Trump said a Secret Service agent was shot in his bulletproof vest and said that "he's in great shape."

What we know about the suspect

Photos of the shooter posted online by Trump on Saturday night appear to match the LinkedIn profile and other photos of Allen. Authorities have not publicly named him, and Business Insider has not independently confirmed his identity.

Allen, 31, of Torrance, describes himself on his LinkedIn as a "mechanical engineer and computer scientist by degree, independent game developer by experience, teacher by birth."

His current job is listed as part-time tutor at C2 Education, which provides "personalized support designed to improve test scores, strengthen academic skills, and help students reach their full potential." He graduated from CalTech in 2017 and earned his master's in computer science from California State University, Dominguez Hills in 2025.

Jeffrey Carroll, the interim chief of the Metropolitan Police Department, said in a press conference following the president's remarks that the suspect was armed with a shotgun, handgun, and knives when he tried to bypass a security checkpoint at the event.

The suspect was not struck by gunfire and was transported to a hospital for evaluation, Carroll said.

In remarks after the incident, Trump described the suspect as a "sick person" who had been "totally subdued and under control."

Inside the room when the shooting occurred

The incident occurred after 8:30 p.m. Friday night, shortly after Trump took his seat.

There was suddenly shouting in front of the stage, according to Tim Röhn, the senior editor of the Axel Springer Global Reporters Network, who attended the event. Business Insider is part of the network.

Röhn reported that pushing and chaos broke out, people started running, guests threw themselves to the floor, and hid under tables. From behind the curtains onstage, heavily armed officers emerged and pointed their rifles at the crowd.

Guests needed a screenshot of an invitation to gain access to the premises and the building, Röhn reported. Photo ID wasn't required. Inside, Secret Service agents patrolled in some areas with dogs, and there was an airport-style security checkpoint in front of the ballroom. Jackets did not need to be removed for security checks.

CBS senior White House correspondent Weijia Jiang, the president of the White House Correspondents' Association, said law enforcement had requested that everyone leave the premises "consistent with protocol," and that Trump "insists" the event be rescheduled within 30 days.

Röhn reported that, following Jiang's remarks, attendees started leaving the venue.

Suspect to be arraigned on Monday

Blanche said law enforcement had worked through the night to piece together information about the suspect and had obtained warrants to examine his devices in their search for a motive.

"We believe he was targeting administration officials in this attack," Blanche told "Meet the Press," adding, "Obviously, President Trump is a member of the administration."

He added, "It does appear he did in fact set out to target folks who work in the administration, likely including the president, but I want to wait and not get ahead of us on that."

Jeanine Pirro, the US attorney for the District of Columbia, who was at the dinner, said at a press conference that her office would consider terrorism charges if the investigation revealed evidence sufficient to sustain them.

Responding to reporters' questions during his press conference, Trump advocated for the man to be sentenced to life in prison.

'Praying for our country tonight'

Until the start of the event, it was unclear when Trump would appear and how long he would stay.

Though Trump appeared as a private citizen and media personality in 2011 and 2015, he boycotted the White House Correspondents' Dinner during his first term.

The Washington Hilton hotel, long the site of the annual dinner, is where President Ronald Reagan was shot and wounded in a 1981 assassination attempt, just steps outside the hotel after addressing a labor gathering.

Trump was the target of two assassination attempts during his 2024 campaign, including a shooting at a rally in Butler, Pennsylvania, that left him injured, and a separate incident at one of his Florida golf courses in which a suspect was apprehended and later sentenced to life in prison.