Records show Thomas Matthew Crooks, 20, was registered as a Republican voter in Pennsylvania, but federal campaign finance reports also show he gave $15 to a progressive political action committee on Jan. 20, 2021, the day President Joe Biden was sworn in to office.

The FBI named Thomas Matthew Crooks, 20, of Bethel Park, Pennsylvania, as the subject involved in the assassination attempt. The agency said the investigation remains active and ongoing.

Asked if law enforcement did not know the shooter was on the roof until he began firing, Rojek responded, “that is our assessment at this time.”

“It is surprising” that the shooter was able to get off as many rounds as were fired, Rojek said. He added that “all the details of that will come out later investigation.”

Asked whether there was anything about the venue that made it particularly difficult to secure, State Police Lt. Col. Bivens deferred to the Secret Service, which was not present at the news conference.

Bivens said he wouldn’t speculate when asked “how close a call” it was for Trump.

State Police have identified the person killed and people injured but are not prepared to release names, State Police Lt. Col. George Bivens said.

Other than Trump, two people were critically injured and one was killed. All were adult males.

Kevin Rojek, Special Agent in Charge, FBI Pittsburgh field office, said late Saturday: “Tonight we had what we’re calling an assassination attempt on our former president, Donald Trump.”

“We do not currently have an identified motive,” he added.

The FBI was not prepared to release the identity of the shooter, who died at the scene.

Rojek said they received no specific threats ahead of the shooting.

The Republican speaker said the House will conduct a full investigation of the attack, saying, “The American people deserve to know the truth.”

“We will have Secret Service Director Kimberly Cheatle and other appropriate officials from DHS and the FBI appear for a hearing before our committees ASAP,” Johnson said.

Rico Elmore, vice chairman of the Beaver County Republican Party, was sitting in a section for special guests, facing President Trump, when he heard what sounded like firecrackers.

“So, everyone hesitated — and it was like, no, these are actual shots. So I yelled, ‘Get down!’”

Elmore saw Secret Service agents helping Trump off the stage and then heard someone from his left calling for a medic.

Elmore knows first aid and CPR from his time in the military, and he knew a medic wouldn’t be able to reach the cries for help fast enough.

He took off his tie and jumped a barricade, but when he reached the person, Elmore saw he had been shot in the head. Elmore said he held the victim’s head but it was too late. The man was unresponsive.

“I mean, it was a horror,” Elmore said. “I pray to the family that had to deal with this that is going through this now. Because it is hard. It is so hard.”

He said that the shots came from behind the bleachers but did not see the shooter.

“My heart is with the former President, those injured, and the family of the spectator killed in this horrific attack,” Garland said in a statement.

“We will not tolerate violence of any kind, and violence like this is an attack on our democracy. The Justice Department will bring every available resource to bear to this investigation.”

Law enforcement recovered an AR-style rifle at the scene, according to a person familiar with the matter. The person was not authorized to discuss details of the investigation.

Chet Jack, a member of the state Republican Party and former Butler County Republican chairman, and his wife Beth were sitting in the bleachers facing Trump when they heard the shots.

Beth ducked after hearing the shots, feeling relieved for a moment when she thought it had ended — then she heard a second round of shots, which she guessed might have been aimed at the shooter.

“I couldn’t see what happened with President Trump, because the minute I heard a shot, I yelled, ‘Everybody get down!’” Beth said. “I knew that was a shot.”

The couple said they were within feet — less than 10 yards — of a man who was shot in the bleachers.

“Right after he got shot, everybody started screaming, ‘Medic!’” Beth said. “It was just hard because so many people were down, and you’re scared to death but at the same point, you want to know that he’s okay. But they did get somebody there right away.”

“There was a lot of blood,” Chet said.

While Beth and the crowd ducked for cover, Chet said he remained standing, looking for the shooter. He said he believed the shots were coming from above, and that ducking wouldn’t protect him.

“You can’t let these guys — these maniacs — terrify you,” he said.

Senate Majority Leader Chuck Schumer’s office said he has been briefed on the latest developments from the shooting in Pennsylvania.

House Speaker Mike Johnson said earlier on social media that he had been briefed by law enforcement.

Trump, in his social media post, also thanked the U.S. Secret Service and law endorsement for their “rapid response” and also extended his condolences “to the family of the person at the Rally who was killed, and also to the family of another person that was badly injured.”

“It is incredible that such an act can take place in our Country. Nothing is known at this time about the shooter, who is now dead,” he said.

Former House Speaker Nancy Pelosi, whose husband Paul Pelosi was badly injured in a home invasion in 2022, condemned the attack in a post on X.

“As one whose family has been the victim of political violence, I know firsthand that political violence of any kind has no place in our society,” she said. “I thank God that former President Trump is safe.”

Vice President Harris said in a statement she has been briefed on the shooting at Trump’s rally, and that she and her husband, Doug Emhoff, are “relieved that he is not seriously injured.”

“We are praying for him, his family, and all those who have been injured and impacted by this senseless shooting,” said Harris.

“Violence such as this has no place in our nation. We must all condemn this abhorrent act and do our part to ensure that it does not lead to more violence.”

Butler County District Attorney Richard Goldinger told CNN that in addition to the spectator who was killed, another attendee was taken to a local hospital and in serious condition.

“The shooter is dead,” Goldinger said.

He said the shooter was outside the rally grounds, but he didn’t give additional information about where the shooter was.

“Quite frankly I don’t know how he would have gotten to the location where he was, but he was outside the grounds and I think that’s something that we’re going to have to figure out — how he got there,” Goldinger told CNN.

Biden says he is waiting for additional information before formally calling the attack an attempted assassination on the former president.

“I have an opinion, but I don’t have any facts,” he told reporters, pledging to provide updates as he learns more.

Biden says he has tried to get ahold of Trump but hopes on talking to him shortly.

Trump’s eldest son, Donald Trump Jr., says he just spoke to his father on the phone and that “he is in great spirits.”

“He will never stop fighting to save America, no matter what the radical left throws at him,” he said of his father in a statement.