We've just been hearing from authorities in Pennsylvania following the arrest and arraignment of Luigi Mangione on charges including forgery and carrying a firearm without a license.

Police say he is also the suspect in the killing of CEO Brian Thompson. Mangione does not appear to have a lawyer that is immediately contactable for comment.

If you are just joining us, here are the top lines:

• Mangione appeared in a Pennsylvania court on Monday evening, where he was charged with carrying a firearm without a license, forgery and providing false identification to police. He was denied bail
• He has not been charged with the killing of Thompson, though Pennsylvania authorities say homicide charges are expected to be filed by New York police soon
• Mangione was spotted at a McDonald's in Altoona, Pennsylvania, earlier on Monday morning by a customer, who then alerted an employee that he may be the person of interest in Thompson's murder

• Mangione then allegedly gave police a fake ID, for which he was arrested. Police then searched him and found other items in a backpack - alleged to include a 3D-printed gun and silencer
• When an officer asked Mangione if he had been to New York recently, he "became quiet and started to shake," police officers wrote in a court complaint document. Asked why he had lied about his identity, Mangione apparently replied, "I clearly shouldn't have"
• He will be transferred to a state correctional facility this evening, where he will be held

We're pausing our live coverage here. Read a full account of today's developments here. And find out more about suspect Luigi Mangione here.

Police have now concluded their news conference in Pennsylvania following the arrest of Luigi Mangione, whom authorities have confirmed is the suspect in the killing of UnitedHealthcare CEO Brian Thompson.

In closing, Governor Shapiro thanked again the Pennsylvanian who called in with the tip that led to Mangione's arrest, as well as the law enforcement officers who responded.

Police have said that Mangione will be transferred to a state correctional facility this evening, where he will be held.

During the earlier court appearance Mangione was denied bail.

Luigi Mangione is expected to be charged with homicide imminently in the death of UnitedHealthcare CEO Brian Thompson, Pennsylvania officials tell reporters at the news conference.

Pete Weeks, a district attorney for Pennsylvania's Blair County, says he expects charges against the suspect to be filed by New York officials either "tonight or tomorrow".

BBC correspondent Jessica Parker asks police if they have determined a motive behind the suspect's alleged crimes.

Police say they will not comment, reiterating that there is "a lot of information to go through" from the evidence they have seized so far, and that they are focused more closely on his activities in Pennsylvania.

They do add, however, that "there is some information that gives insight into his thinking."

Police say they will update the media in the coming days on the matter.

Once charging documents are filed in New York, Pennsylvania will file a "fugitive justice complaint" and he will be brought before a state judge, police say.

That judge will then present Luigi Mangione with the option of waving his extradition or to contest it.

If he waives it, he will immediately be made available to New York authorities.

If he contests it, the process could take between 30 and 45 days. It is a common procedure.

Governor Shapiro says "presumably New York will file charges very soon" against Luigi Mangione, adding that "justice will be delivered in this case."

He adds that this case has "hinged on attention", which he says was helpful in allowing to catch the gunman.

A reminder that Mangione has so far only been charged on counts including forgery and carrying a firearm without a license.

Police are now speaking about the items found in Mangione's backpack, including written documents and electronic devices that are in the process of being searched to get a sense of his activities and to retrace his steps.

They add that he has been in Pennsylvania "for several days" and have identified businesses he visited.

Police add they have a "good idea" of his journey since leaving New York City, noting a "variety of locations across the state" - but say more will be determined as the investigation progresses.

Authorities in Pennsylvania describe the apprehension of Mangione as a "peaceful arrest".

He became "visibly nervous" and had a "physical reaction" when asked if he had been in New York, they say.

However, another police official then says that he's since stopped being cooperative.

Shapiro addresses some of the discourse on social media surrounding the killing of UnitedHealthcare CEO Brian Thompson.

"Some attention in this case, especially online, has been deeply disturbing, as some have looked to celebrate instead of condemning this killer," Shapiro says.

Thompson, Shapiro says, "was a father of two, a friend to many, and yes CEO of health insurance company."

"In America, we do not kill people in cold blood to resolve policy differences or express a view point," he says.

"I understand that people have real frustration with our healthcare system... but I have no tolerance, nor should anyone, for one man using an illegal ghost gun to murder someone because he thinks his opinion matters most."

Luigi Mangione is believed to have travelled between Philadelphia and Pittsburgh, making stops in between, including in Altoona, where he was arrested earlier today, Pennsylvania Governor Josh Shapiro says.

Speaking at the news conference, the governor also calls on residents to call in with further tips.

Governor Shapiro adds that the person in McDonald's who called police in Altoona is a "hero".

"A Pennsylvania resident saw something earlier this morning at McDonalds, and said something to our local police," he adds.

Shapiro asks other Pennsylvanians to similarly help law enforcement as the investigation continues.

A news conference by law enforcement officers in Altoona, Pennsylvania has just begun.

Luigi Mangione appeared in an Altoona court moments ago, facing numerous charges including carrying a firearm without a license and providing false identification to police.

He has not been formally charged with the death of UnitedHealthcare CEO Brian Thompson, though New York Police say their investigation into the killing is ongoing.

Stay with us as we bring you the latest.

We've just received a copy of the criminal complaint filed against Luigi Mangione in Pennsylvania. Here is what it tells us:

• The 26-year-old was charged with one count of forgery, one count of carrying a firearm without a license, one count of tampering with records or identification, one count of possessing instruments of a crime, and one count of providing false identification to the authorities - a total of five counts
• The complaint states that Mangione was spotted at the McDonald's wearing a medical mask and a beanie. He was located sitting at a table, looking at a silver laptop screen. He also had a backpack next to him
• Police say they asked him to pull down his mask, after which he did, and he was then "immediately recognised" as the person of interest in the shooting of Brian Thompson, CEO of UnitedHealthcare
• He then allegedly presented to officers a New Jersey driver's license, according to the complaint, under the name Mark Rosario. Police ran a search on the ID but it returned no results, and it was found to be fake, the complaint adds.
• When an officer asked Mangione if he had been to New York recently, he "became quiet and started to shake," police officers wrote in the complaint. Asked why he had lied about his identity, Mangione apparently replied, "I clearly shouldn't have"
• Mangione was then handcuffed on scene for providing false identification to police. Officers then searched his backpack, where they allegedly located "a black 3D-printed pistol and a black silencer," the latter of which they say was also 3D printed

Luigi Mangione has just arrived at the courthouse in Altoona, Pennsylvania, US media report.

Our reporters are inside the courtroom, but no electronic devices of any kind or video and audio recording are permitted inside.

A press conference is expected to take place after the hearing, at 18:30 local time (23:30 GMT).

Mangione was arrested in the town earlier this afternoon after he was spotted inside a McDonald's by an employee.

He is facing firearm-related charges in Pennsylvania. He has not been charged with the killing of UnitedHealthcare CEO Brian Thompson, though New York police say their investigation is ongoing.

Nada Tawfik
Reporting from New York

This was an exhaustive five-day hunt by the NYPD that saw drones, canines and even scuba divers deployed in a lake in Central Park to scour for evidence.

Ultimately, though, the breakthrough came from a McDonald's employee who had seen the CCTV and various other images of the suspect that had been widely circulated by police.

New York’s Police Commissioner Jessica Tisch said it was a combination of old-school detective work and new-age technology that led them to this development.

Officials were confident that they would find their suspect, but because it was so carefully planned, that certainly added to the complexity of this case. Until the tip from the McDonald’s employee, officials didn’t have Luigi Mangione on their radar, and not for a lack of trying.

This investigation is not over, and they will be working with the New York County District Attorney Alvin Bragg to build their case against the 26 year old.

TrueCar, a digital retailing website for new and used cars, has confirmed to the BBC that Luigi Mangione was an employee of their company.

"While we generally don't comment on personnel matters, we can confirm that Luigi Mangione has not been an employee of our company since 2023," a spokesperson says in a statement.

According to a Linkedin profile with the same name as the suspect, Mangione worked at TrueCar as a data engineer.

Madeline Halpert
Reporting from New York

Image source, Instagram

The identification of Luigi Mangione as the suspect in the United Healthcare CEO shooting has shocked many, including those who knew him.

A friend who attended college with Mangione at the University of Pennsylvania, an elite, Ivy League school, said the 26-year-old seemed "super normal" and "smart".

"I would never have expected this," his classmate, who asked not to be named, said.

Mangione has not been charged with the murder of UnitedHealthcare CEO Brian Thompson, though he is facing weapons charges in Pennsylvania.

At the University of Pennsylvania, Mangione received both a bachelor's degree and a master's degree in engineering, majoring in computer science.

He graduated cum laude, a distinction given to students with good marks.

Local media also reports that Mangione comes from a prominent family in the Baltimore area whose businesses include a country club and nursing homes.

He is the cousin of Republican state lawmaker Nino Mangione, according to media reports.

Read more on what we know about Luigi Mangione

We've just received word that Luigi Mangione will appear in a Pennsylvania court in the town of Hollidaysburg at 18:00 local time (23:00 GMT) for a preliminary arraignment on the gun charges he faces in the state.

He has still not been charged in connection with the murder of UnitedHealthcare CEO Brian Thompson, although New York police have referred to him as the "suspect".

No video or audio recording will be allowed at the upcoming hearing, and no electronic devices of any kind are permitted.

We have been reporting on the arrest of a suspect in the killing of UnitedHealthcare CEO Brian Thompson, who has been identified by New York City police this afternoon as 26-year-old Luigi Mangione.

Here is what we know so far:

• Mangione was arrested at a McDonald's in Altoona, Pennsylvania - some 277 miles (445km) - away from New York City where Thompson was killed
• He has been charged with firearm-related offenses, but has not been charged with the murder of Thompson. Police say their investigation is ongoing
• Police were able to find him thanks to a tip from someone who spotted him, saying he matched the description of the person of interest in the case
• Mangione was found with a "ghost gun" that police believe is likely 3D printed, as well as IDs - one of which had his real name and the other was fake - and a three-page handwritten document that police say outlined his "ill will towards corporate America"
• The suspect has no prior criminal history. He was born in Maryland, police say, with his last known address being in Honolulu, Hawaii. He also has ties to San Francisco, California
• He attended the University of Pennsylvania, an Ivy League school, where he studied computer science. He grew up in Baltimore, Maryland, where he attended a private, all-boys high school
• UnitedHealthcare has since commented on his arrest, telling BBC News that the company hopes it will bring "some relief to Brian's family, friends and colleagues"

Cai Pigliucci
Reporting from Altoona, Pennsylvania

We’ve just arrived at the McDonald’s in Altoona, Pennsylvania, where earlier this morning, 26-year-old Luigi Mangione was arrested in connection with the murder of United Healthcare CEO Brian Thompson.

There’s a few media tents set up, with likely more to come.