Watch Live: FBI director testifies at House hearing on Trump shooting

Washington — FBI Director Christopher Wray is testifying at a hearing on the investigation into the assassination attempt against former President Donald Trump , and he is revealing new details about the gunman's actions in the lead-up to the July 13 shooting in Pennsylvania.

Wray told members of the House Judiciary Committee that the gunman, 20-year-old Thomas Crooks, flew a drone near the site of the rally roughly two hours before he opened fire . Wray said investigators recovered the drone in Crooks' vehicle, and the bureau believes he was watching video streamed from the device to scout the area.

The FBI chief also said agents recovered a total of three "relatively crude" explosive devices: two from Crooks' vehicle and one from his residence. Crooks had a transmitter that would have allowed him to detonate the devices remotely, but the receivers on the bombs in his car were turned off, Wray said.

Eight shell casings were found on the roof where Crooks opened fire, Wray confirmed. The gunman killed one attendee and wounded Trump and two others.

Investigators have managed to gain access to Crooks' phone, which Wray said was a "significant technical challenge." He said agents discovered Crooks was using encrypted messaging apps to communicate.

The FBI, which is investigating the shooting as a potential act of domestic terrorism, does not yet have "a clear picture" of the gunman's motive, Wray said.

Here's the latest from the hearing:

Spartz says Jan. 6 rioters were "law-abiding citizens" who were upset with the government

In an exchange with Republican Rep. Victoria Spartz of Indiana that grew heated, the congresswoman indicated that people who were charged as a result of their actions during the Jan. 6, 2021, assault on the U.S. Capitol were "law-abiding citizens that really were just upset with the government."

She then asked Wray about whether the FBI had confidential human sources at the Capitol that day.

"If you are asking if the violence at the Capitol on Jan. 6 was part of some operation orchestrated by FBI sources or agents, the answer is no and it's a disservice to our people," Wray said in response to Spartz's questions.

The FBI director grew angry with Spartz's insinuation that the FBI was involved in the attack. He noted there have been 850 defendants who have pleaded guilty to charges stemming from the Capitol riot and 180 who have gone to trial.

"They've all had access to defense counsel, discovery, all the things the Constitution and the rules provide them," Wray said. "It's been in front of something like 15 different judges, dozens of juries, and not one has given credence to this notion."

Hundreds of Trump's supporters breached the Capitol on Jan. 6, leading to the evacuation of lawmakers who had gathered to certify the election results. Some of the rioters chanted "Hang Mike Pence," and some of those who breached the Capitol carried guns, stun guns, knives, baseball bats, flagpoles and chemical sprays.

The Justice Department said in a May update about the Jan. 6 attack that 133 people have been charged with using a deadly or dangerous weapon or causing serious harm to a law enforcement officer.

Wray says FBI employee posted something "outrageous" about Trump surviving assassination attempt

During an exchange with Republican Rep. Chip Roy of Texas, Wray was asked whether there have been any FBI agents who have texted or emailed about Trump surviving the attempt on his life in Butler, or editorialized about it.

Wray said there was one instance of an individual, who is not a FBI agent, who "posted something that I consider outrageous and totally inappropriate and unacceptable."

That person was referred to the FBI's Inspection Division, which conducts internal investigations, he said.

Wray says terrorists exploiting vulnerabilities at southern border "something we have to be concerned about"

In response to questions from Rep. Tom Tiffany, a Wisconsin Republican, Wray said he is "increasingly concerned" that terrorists "could seek to exploit vulnerabilities" at the U.S.-Mexico border and other ports of entry to facilitate an attack in the U.S..

"I think that is something we have to be concerned about," he said, adding, "It doesn't take very many foreign terrorists to be a real problem."

Wray later said when it comes to addressing threats of terrorism, the U.S. needs more help from international partners.

Wray says description of gunman as a loner "fit[s] with what we're seeing" on his devices

Wray told lawmakers about what they have learned about the shooter and his interactions with others. He said there has not been evidence uncovered by the FBI that Crooks had accomplices or co-conspirators, foreign or domestic. Investigators are "intensely focused" on whether he was in contact with anyone else before the attack, he continued.

"There doesn't appear to be a whole lot of interactions between him, face-to-face or digital, with a lot of people," Wray said. "That doesn't mean there's not any."

The FBI head said that in interviews conducted as part of its probe, Crooks has been described as a "loner." He said "that does kind of fit with what we're seeing" in the shooter's devices. For example, the gunman's list of contacts is very short compared to what the FBI expected.

Russians continue efforts to influence election, Wray says

Turning to attempts to influence the 2024 election, Wray told Rep. Eric Swalwell, a California Democrat, that the FBI has found that the Russian government "continues to want to influence and in various ways interfere with our democracy, with our electoral process."

He said that in the last few weeks, the FBI announced it disrupted a Russian AI-enhanced social media bot farm, which was designed to be an influence operation. Some of the fake profiles from bots purported to be Americans.

"They're still at it," Wray said. "We've seen that in election cycle after election cycle."

He declined to say whether the Russians have a candidate they prefer to win in November and added that such attempts to influence U.S. elections are not limited to Russia, but also Iran in 2020 and, recently, China.

FBI chief says gunman became "very focused" on Trump and the Butler rally around July 6

The FBI director provided more details about the devices and accounts the bureau gained access to and said the "usual repositories of information have not yet yielded anything notable in terms of motive or ideology."

Still, Wray said Crooks was interested in public figures "more broadly," and starting around July 6, he became "very focused on" Trump and the Butler rally.

Asked more about the photos of public officials, Wray said images recovered from the shooter's devices are cached images from searches of news articles.

"As far as the pictures that are like that, there doesn't seem to be a whole lot of rhyme or reason to it so far, other than these are all prominent public people. But they cover both parties, they cover both U.S. people and even some foreign public officials," he said.

He said that one source of information "doesn't appear to be overly indicative of motive" and clarified that this doesn't appear to be a target list of sorts, but rather cached images from searches of news stories.

"There's no pattern from that particular piece of information that is overly remarkable so far," Wray said.

Wray reveals shooter searched "how far away was Oswald from Kennedy" on July 6

Wray told lawmakers that the FBI conducted an analysis of a laptop tied to the shooter and found that on July 6, one week before the Butler rally, he conducted a Google search for "how far away was Oswald from Kennedy," a reference to Lee Harvey Oswald, who assassinated President John F. Kennedy in 1963.

"That's a search that obviously is significant in terms of his state of mind," he said.

That same day he registered for Trump's rally in Butler, Wray said.

Wray says FBI reverse-engineered flight path of shooter's drone

Returning to the drone, Wray said investigators were able to reverse-engineer its flight path in the roughly 11 minutes it was in the air two hours before the rally.

"It would have shown the shooter, we think — again, we're still doing more work on this, I really want to qualify what I'm saying, but I'm trying to be transparent and lenient here. We think it would have shown him, kind of, what would have been behind him when he was shooting," Wray said.

"In other words, almost like giving him a rear-view mirror of the scene behind him. Except again, he wasn't flying it overhead while he was later back for the assassination.

"We're still trying to figure out exactly what he saw, because we're having to, in effect — because there's no recording of what he saw during those 11 minutes, our hypothesis at this point, our experts think he would have been live-streaming it," Wray continued. "And so we're trying to in effect say, OK, if this is the flight pattern, given these capabilities of the drone, what would you have seen, what could you have seen in these 11 minutes?"

Wray reveals shooter's rifle had collapsible stock

Wray reiterated that the gunman fired at least eight shots from the rooftop and later revealed to lawmakers that Crooks' AR-style rifle had a collapsible stock.

The FBI chief said that feature "could explain why it might've been less easy for people to observe."

The first people at the rally who saw Crooks with the gun observed him when he was already on the roof he fired from, Wray said, and the FBI hasn't yet found any witnesses who saw him walking around with the gun.

Wray said the collapsible stock is "potentially a very significant feature that might be relevant to that."

Wray confirms shooter bought a ladder, but it wasn't found at the rally site

In an exchange with Rep. Steve Cohen, a Tennessee Democrat, Wray confirmed that Crooks bought a ladder before the shooting, which he said was about 5 feet tall.

"But importantly, we did not find the ladder at the scene so it's not clear that he used the ladder to get on top of the roof," he said.

The FBI is still looking into how Crooks got access to the roof, Wray continued.

Wray says gunman wasn't on FBI's radar before assassination attempt

Wray told Rep. Matt Gaetz, a Florida Republican, that the FBI "did not have any information about the shooter" and "he was not in our holdings before the shooting."

The FBI chief said the bureau ran a search for Crooks through its databases, and he was not found.

Gaetz then pivoted to questions about President Biden's health and whether Wray noticed a cognitive decline during briefings with him.

"All my interactions with the current president have been completely professional," Wray said.

He said his briefings with Mr. Biden have been "uneventful and unremarkable."

Gaetz continued to press Wray on his experience working with Mr. Biden, and the FBI chief said they're interactions have been "completely fine."

"There hasn't been anything of note in the area you're talking about," Wray said.

Wray says agents found 14 guns in shooter's home

Under questioning from Lofgren, Wray said investigators "located a number of firearms associated with the shooter and his family — I think it was a total of 14 in the house.

"The weapon that he used for the attempted assassination was an AR-style rifle that was purchased legally, that he — it's my understanding — acquired, I think bought, actually from his father, who was the one who originally bought it," Wray said. "Again, legally."

Crooks lived with his parents in nearby Bethel Park, Pennsylvania, and his family has cooperated with the investigation.

Wray says FBI still doesn't have a "clear picture" of Crooks' motive

The committee returned from a break just before 11:30 a.m., and California Rep. Zoe Lofgren, a Democrat, kicked off questioning. She apologized to Wray for vitriol directed at him as a result of conspiracy theories and other claims spread about him online.

Asked by Lofgren about what the FBI found on Crooks' phone, Wray indicated that the bureau is involved in a "legal process" to gain access to other accounts associated with the shooter. The FBI is also still looking at other digital devices.

"We do not yet have a clear picture of his motive," he said.

Wray said that often during an investigation, the FBI will see social media accounts, messages, or a manifesto that may shed light on a motive, but agents haven't seen that yet with Crooks.

"We're not seeing that, but we're digging in hard because this is one of the central questions for us," he said.

Wray said Crooks appears to have done searches of public figures "in general," but through news articles. The photos of public officials that were found on his phone were associated with those articles, he said.

Wray reveals new details about shooter's drone, explosives and phone

Wray provided details to lawmakers about the drone recovered from Crooks' vehicle, as well as explosive devices found in his vehicle and residence and the shooter's use of encrypted messaging apps on his phone.

On the drone, Wray said the device and a controller were recovered from Crooks' car and are being analyzed by the FBI. He said that the shooter was flying the drone around the area — not over the stage, but roughly 200 yards away — around 3:50 p.m. or 4 p.m. local time on the day of the shooting.

"We think — but we do not know, so this is one of those things that is qualified because of our ongoing review — that he was live-streaming, viewing the footage" for roughly 11 minutes, Wray said.

The FBI director said the bureau recovered a total of three explosive devices, two from Crooks' vehicle and one from his residence. He called the devices "relatively crude" explosives. He said the explosives had receivers that could have allowed them to be detonated remotely. Crooks himself had a transmitter, Wray noted.

"At a moment, it looks like because of the on/off position on the receivers, that if he had tried to detonate those devices from the roof, it would not have worked, but that doesn't mean the explosives weren't dangerous," Wray said.

The FBI director said the FBI was able to get into Crooks' phone, which he said was a "significant technical challenge," and found Crooks was using encrypted messaging applications.

"On this subject, I would say this has unfortunately now become commonplace and it's a challenge" for the FBI and state and local law enforcement, he said.

Wray said the FBI is interviewing law enforcement from the scene of the attack.

Wray says any efforts to cut FBI's funding are "incredibly short-sighted"

Wray pushed back on some Republicans' threats to defund the FBI, calling cuts to its funding "incredibly short-sighted."

He warned that a decrease in the bureau's funding would harm local law enforcement.