Live Updates: Trump rally shooting investigation continues as details emerge

New details continue to emerge in the investigation into the assassination attempt on former President Donald Trump, who is now at the Republican National Convention in Milwaukee with his ear still bandaged and with increased security evident around him.

The gunman's motive in the Saturday attack on the former president remains unclear five days after he opened fire at Trump's campaign rally in Butler, Pennsylvania — wounding Trump and two others and killing a rallygoer . The U.S. Secret Service is facing mounting questions about the security flaws that enabled the shooter to fire from a rooftop near the rally.

Eric Trump, the former president's son, told CBS News his father doesn't have stitches but has a "nice flesh wound." He said his father's hearing is fine and that he is "in great spirits."

Details about the moments before the shooting are raising more questions. Cellphone video taken Saturday shows rally attendees pointing toward the shooter, later identified as 20-year-old Thomas Matthew Crooks , and trying to alert authorities to his presence — a full two minutes before he opened fire.

Even before that, a sniper from a local tactical team deployed to assist the U.S. Secret Service at the rally took a picture of the gunman, saw him looking through a rangefinder , and immediately radioed to the command post, a local law enforcement officer with direct knowledge of the events told CBS News.

A federal law enforcement bulletin obtained by CBS News identified the gunman as "an apparent lone attacker." The FBI is investigating whether he was a politically motivated homegrown domestic violent extremist.

The Department of Homeland Security's inspector general is opening an investigation into the rally's planning, and President Biden said he is ordering an independent review to determine what went wrong.

Local authorities told Secret Service they couldn't secure building Trump shooter used

Secret Service Director Kimberly Cheatle has said it was going to be up to local law enforcement to secure the building from which the man who shot former President Donald Trump opened fire.

But CBS Pittsburgh reports that Butler County District Attorney Rich Goldinger said the Secret Service was told local police couldn't be responsible for securing the AGR building during the Trump rally.

"I don't know whose responsibility that building was," Goldinger said. "But someone should have been there."

Butler Township manager Tom Knights told the station, "It was indicated we did not have the manpower to take that task on, as well, based on our number of officers on duty."

Knights confirmed that the message was sent to the Secret Service two days before the Trump rally.

Butler Township also told the agency its team could only handle traffic control. CBS Pittsburgh learned the Secret Service never responded to those messages.

"All I know is our township police department was very clear that we did not have the manpower for it," Knights said.

-- CBS Pittsburgh

Senators confront Secret Service director at Republican National Convention

Republican Sens. Marsha Blackburn and John Barrasso posted video to social media appearing to show several congressional members confronting Secret Service Director Kimberly Cheatle in a hospitality suite at the Republican National Convention Wednesday regarding the alleged security lapses leading up to Saturday's assassination attempt on former President Donald Trump.

In the video posted by Blackburn, which also shows Sen. James Lankford, Barrasso demands a "resignation or full explanation" from Cheatle.

Barrasso references a phone briefing of senators by Cheatle earlier in the day, following which several senators had expressed frustration that the call included no pertinent information and was cut off after only a few questions had been allowed.

"We didn't get any of the responses that were necessary from you," Barrasso tells Cheatle in the video.

After fielding a barrage of questions and criticism from the senators, Cheatle responds in the video, "I don't think that this is the place to have this discussion."

She then exits the suite as the senators rush out after her, following her down a hall and continuing to yell questions at her.

Earlier Wednesday, Cheatle agreed to testify before the House Oversight Committee. A committee spokesperson said the hearing would take place as scheduled on July 22

Gunman had 2 phones and searched about Trump appearances, Democratic National Convention

Law enforcement sources offered additional details Wednesday evening about the cellphone search history of Trump rally shooter Thomas Matthew Crooks .

Sources had shared earlier that Crooks searched for images of former President Donald Trump and President Biden ahead of the shooting. On Wednesday evening they said that in addition to the images, Crooks did searches about Trump's appearances and dates, and about the Democratic National Convention.

Crooks also did searches of FBI Director Christopher Wray, Attorney General Merrick Garland and members of the British Royal Family. Crooks also searched about major depression disorders.

The sources also said Crooks had two cellphones and did the searches on his phones. They said there was still no indication of a motive, ideology or political views.

Crooks was killed by a Secret Service sniper shortly after he fired on Trump, officials said.

—Pat Milton, Andy Triay

Video shows Trump arriving at hospital after rally attack

New video posted online shows former President Donald Trump arriving at Butler Memorial Hospital in Pennsylvania on Saturday, just minutes after surviving an assassination attempt at a rally.

Video taken from inside the hospital shows Secret Service agents surrounding Trump's SUV after pulling up. "There he is," people in a waiting room say as agents rush the former president inside the emergency room.

New details keep emerging about the Trump rally shooting.

The gunman at the Pennsylvania rally, Thomas Matthew Crooks, 20, had three fully loaded magazines and what appeared to be a radio transmitter. Over an hour before the shooting, Crooks was caught on video wandering around the rally site.

Watch Meg Oliver report on the latest developments on the "CBS Evening News with Norah O'Donnell."

Old video and photos recirculate, falsely claiming Trump wasn't injured in shooting

Old videos and images of former President Donald Trump were recirculated online in the days after his attempted assassination to push false claims about his condition. Social media users falsely claimed the images "prove" Trump wasn't injured, or that he golfed less than 24 hours after the attack.

On Sunday, users shared photos and a video purporting to show the former president playing golf at his private club in Bedminster, New Jersey. In one photo, Mr. Trump is seen without bandages on his ear, putting on the green. In the video, he's waving to cheering onlookers as he climbs into a golf cart.

But while Mr. Trump was at Bedminster on Sunday, the club was closed, according to an email to club members obtained by Politico . The person who appears to have first shared the video on Sunday admitted in comments that it wasn't from that day.

The video was recirculated on other platforms by users claiming it was new, including in an X post by Sen. Mike Lee, a Republican from Utah, who later commented that he found out the video was old. Lee did not take down his original post, which has over 9 million views.

Read more here.

—Julia Ingram, Cait Bladt

Secret Service director agrees to testify to House lawmakers

U.S. Secret Service Director Kimberly Cheatle has agreed to testify to the House Oversight Committee as Republicans ramp up efforts to investigate the attempted assassination of former President Donald Trump.

The committee's Republican chairman, Rep. James Comer of Kentucky, subpoenaed Cheatle on Wednesday for her testimony, requesting her appearance before lawmakers on July 22.

In a letter to Comer on Wednesday, the Department of Homeland Security offered Cheatle's testimony on July 25, July 26 or the following week. The July 22 date clashed with her "travel and operational commitments." But a committee spokesperson said the hearing would take place as scheduled on July 22, adding that "Americans demand and deserve answers" from Cheatle about the assassination attempt and the Secret Service's "egregious failures."

The letter to Comer, which was obtained by CBS News, said the department was "disappointed" the committee "rushed to issue a subpoena" because Secret Service officials have been briefing members of Congress and their staff in recent days.

"Director Cheatle welcomes the opportunity to testify before the Committee," the letter said.

Read more here.

—Nicole Sganga, Caitlin Yilek

Gunman searched for images of Trump, Biden before rally shooting

Rally shooter Thomas Matthew Crooks searched online for images of both former President Donald Trump and President Biden before Saturday's assassination attempt on Trump, sources said on Wednesday.

He used his cellphone to search for the images. Investigators briefed lawmakers Wednesday afternoon, telling them that Crooks also searched for symptoms of depressive disorder, according to a source familiar with the briefing.

Crooks also visited the site of the Butler, Pennsylvania, rally at least one time before Saturday's shooting.

FBI Director Christopher Wray told Congress on Wednesday that more than 200 interviews have been done during the investigation so far, and over 14,000 images have been reviewed. Law enforcement still has not determined a motive for the shooting.

Injured shooting victims upgraded from critical to serious medical condition

The two men who were wounded during Saturday's shooting at a Trump rally in Pennsylvania had their medical conditions upgraded on Wednesday from critical to serious condition, hospital officials said.

Both James Copenhaver, 74, and David Dutch, 57, are patients at Allegheny General Hospital. Another man, 50-year-old Corey Comperatore , was fatally shot at the rally.

Copenhaver, a resident of Moon Township, Pennsylvania, was shot twice: once in the leg and once in the abdomen, CBS Pittsburgh reported. Dutch, a Marine Corps veteran, was shot in the liver and chest.

The families of both victims released statements this week thanking first responders and medical teams for their aid. They also thanked well-wishers for the outpouring of support.

Moon Township supervisor Al Quaye told CBS Pittsburgh on Monday that Copenhaver is "a super nice guy, and I couldn't believe it happened to him."

A friend of Dutch , Dee Rakar, told the station, "He's a wonderful person, loves his gun bashes, and he likes his gambling."

Senate Minority Leader Mitch McConnell calls for "new leadership at the Secret Service"

Senate Minority Leader Mitch McConnell called for new leadership at the Secret Service in the aftermath of Saturday's assassination attempt on former President Donald Trump.

In a social media post , McConnell said "the nation deserves answers and accountability" and a change in leadership at Secret Service would be "an important step in that direction."

House Speaker Mike Johnson earlier made clear that he plans to call for Secret Service Director Kimberly Cheatle to resign.

Cheatle on Wednesday agreed to testify to the House Oversight Committee . She and her agency have been under immense scrutiny since Saturday's shooting.

President Biden appointed Cheatle as director in 2022. She'd spent 27 years with the agency before her appointment and served on Biden's security detail when he was vice president.

Local police told Secret Service of security plans for building, official says

Local police told the Secret Service before the rally that they did not have the manpower to place a patrol car outside the building where the gunman would later position himself, Butler County District Attorney Richard Goldinger told CBS Pittsburgh.

The Butler Township officer in charge told Secret Service this during a preplanning meeting about a week before the rally. The news about this conversation was first reported by the Washington Post.

Local police instead planned to secure the building with police personnel and tactical teams, a law enforcement official said.

The building had three snipers from local tactical teams positioned inside, overlooking the crowd. One of those snipers spotted the gunman and photographed him. The local sniper also saw the gunman looking through a rangefinder and immediately radioed his command post, according to a local law enforcement officer.

–Nicole Sganga, Andy Sheehan

Tree may have blocked snipers' view of gunman, maps show

A CBS News analysis of video and satellite imagery shows a tree may have prevented one of the sniper teams tasked with protecting Trump from seeing the gunman.

The tree, located between the gunman and the sniper team closest to him, may have impaired the team's line of sight as the gunman climbed onto the roof from which he fired — and as he opened fire.

That sniper team — on a roof over Trump's right shoulder — did not fire the shot that killed the gunman, two federal law enforcement officials have told CBS News. Another sniper team — whose view was not obstructed by the tree, analysis shows — killed the shooter. That team was located on the other side of the former president and was initially directed in another way, so the snipers had to reorient themselves before taking down the gunman, CBS News' Charlie De Mar reported.

Read more here.

— With reporting from Erielle Delzer, Alex Clark, Rhona Tarrant

House Republicans ramp up investigations

House Republicans are ramping up efforts to investigate the attempted assassination and the apparent security lapses that allowed a gunman to get within striking distance of the GOP presidential nominee.

Lawmakers on both sides of the aisle have expressed alarm about how the gunman was able to open fire. Republicans' ire has been directed at federal law enforcement leaders, with some sporadic calls for agency heads to step down.

Speaker Mike Johnson announced on Wednesday that he will create a special task force within the House to investigate the attack and said in a social media post "we need answers for these shocking security failures."

Johnson elaborated on Fox News, saying he plans to set the task force up on Monday and explaining that it will work as a "precision strike," able to move quickly by avoiding some procedural hurdles that other investigatory avenues face in Congress. It would be a bipartisan task force, made up of both Republicans and Democrats, he said.

The Louisiana Republican said he spoke with Department of Homeland Security Secretary Alejandro Mayorkas, who he said "did not have satisfactory answers" about the attack. Johnson said he's also spoken with law enforcement leaders and that "the answers have not been forthcoming." And he made clear that he plans to call for Secret Service Director Kimberly Cheatle to resign.

Meanwhile, the House Judiciary Committee announced it will hold a hearing next week on the FBI's investigation into the assassination attempt, with FBI Director Christopher Wray set to testify.

A flurry of hearings are scheduled for next week to grill agency heads about the security failure. Cheatle is set to appear before the House Oversight Committee on July 22. And chairman of the House Committee on Homeland Security Mark Green invited Mayorkas, Wray and Cheatle to testify before the committee on July 23.

Read more here .

3 fully loaded magazines recovered after rally shooting

Law enforcement recovered three fully loaded magazines from the rally Saturday, sources familiar with the investigation told CBS News. The magazines belonged to the gunman, who used an AR-style rifle during the shooting.

It's not clear if the magazines were found on the gunman's body or in his vehicle.

Investigators previously found two suspected improvised explosive devices in the gunman's car, according to an FBI/DHS bulletin. Another was found at his residence.

— CBS News' Nicole Sganga, Rob Legare

House Judiciary committee to hold hearing into FBI investigation

The House Committee on the Judiciary, led by Republican Rep. Jim Jordan from Ohio, will hold a hearing next week to "examine the FBI's investigation" into the assassination attempt against Trump and what it called the "ongoing politicization of the Bureau."

FBI director Christopher Wray will be called as a witness, according to the announcement of the hearing.

Shooter's motive still unknown

It is still unclear why the shooter opened fire on Trump at the campaign rally.

The FBI has cracked into his phone, scoured his computer, home and car, and interviewed more than 100 people as they search for answers.

The gunman appears to have been an intelligent loner with few friends, an apparently thin social media platform and no hints of strong political beliefs. He was described by former classmates from Bethel Park High School as smart but standoffish, often seen wearing headphones and preferring to sit alone at lunch, looking at his phone. Some said he was often mocked by other students for the clothes he wore, which included hunting outfits.

"He sat by himself, didn't talk to anyone, didn't even try to make conversation," said 17-year-old Liam Campbell. "He was an odd kid," but nothing about him seemed dangerous, he added. "Just a normal person who seemed like he didn't like talking to people."

Other classmates remembered the gunman in a more positive light. Jameson Myers, who graduated alongside the shooter in 2022, told CBS News that the gunman was a "nice kid who never talked poorly of anyone."

"I never have thought him capable of anything I've seen him do in the last few days," said Myers, who said that he had been friends with the gunman in elementary school. "When I did speak with him, he just seemed like a normal boy who was not particularly popular but never got picked on or anything."

After graduating from high school, the shooter went on to the Community College of Allegheny County, earning an associate's degree with honors in engineering science in May. He also worked at a nursing home as a dietary aide.

— CBS/AP